{"id":"https://openalex.org/W2030439620","doi":"https://doi.org/10.1186/1471-230x-13-28","title":"Chronic fatigue syndrome 5 years after giardiasis: differential diagnoses, characteristics and natural course","display_name":"Chronic fatigue syndrome 5 years after giardiasis: differential diagnoses, characteristics and natural course","publication_year":2013,"publication_date":"2013-02-12","ids":{"openalex":"https://openalex.org/W2030439620","doi":"https://doi.org/10.1186/1471-230x-13-28","mag":"2030439620","pmid":"https://pubmed.ncbi.nlm.nih.gov/23399438","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/3598369"},"language":"en","primary_location":{"id":"doi:10.1186/1471-230x-13-28","doi":"https://doi.org/10.1186/1471-230x-13-28","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1471-230x-13-28","pdf_url":"https://bmcgastroenterol.biomedcentral.com/counter/pdf/10.1186/1471-230X-13-28","source":{"id":"https://openalex.org/S180811554","display_name":"BMC Gastroenterology","issn_l":"1471-230X","issn":["1471-230X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Gastroenterology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://bmcgastroenterol.biomedcentral.com/counter/pdf/10.1186/1471-230X-13-28","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5108765325","display_name":"Kristine M\u00f8rch","orcid":"https://orcid.org/0000-0002-6401-1353","observed_orcids":["https://orcid.org/0000-0002-6401-1353"]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]}],"countries":["NO"],"is_corresponding":true,"raw_author_name":"Kristine M\u00f8rch","raw_affiliation_strings":["National Centre for Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, Bergen, Norway. kristine.morch@helse-bergen.no","National Centre for Tropical Infectious Diseases Department of Medicine Haukeland University Hospital Bergen Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Centre for Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, Bergen, Norway. kristine.morch@helse-bergen.no","institution_ids":["https://openalex.org/I2800740805"]},{"raw_affiliation_string":"National Centre for Tropical Infectious Diseases Department of Medicine Haukeland University Hospital Bergen Norway","institution_ids":["https://openalex.org/I2800740805"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058214741","display_name":"Kurt Hanevik","orcid":"https://orcid.org/0000-0002-1466-2326","observed_orcids":["https://orcid.org/0000-0002-1466-2326"]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]},{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Kurt Hanevik","raw_affiliation_strings":["Insitute of Medicine, University of Bergen, Bergen, Norway","National Centre for Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Insitute of Medicine, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]},{"raw_affiliation_string":"National Centre for Tropical Infectious Diseases, Department of Medicine, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021529075","display_name":"Ann Christin Rivenes","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Ann C Rivenes","raw_affiliation_strings":["Division of Psychiatry, Haukeland University Hospital, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Psychiatry, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085745395","display_name":"J\u00f8rn Eilert B\u00f8dtker","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"J\u00f8rn E B\u00f8dtker","raw_affiliation_strings":["Division of Psychiatry, Haukeland University Hospital, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Psychiatry, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058926270","display_name":"Halvor N\u00e6ss","orcid":"https://orcid.org/0000-0002-7336-3131","observed_orcids":["https://orcid.org/0000-0002-7336-3131","https://orcid.org/0009-0007-9822-2064"]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Halvor N\u00e6ss","raw_affiliation_strings":["Department of Neurology, Haukeland University Hospital, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Neurology, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028780628","display_name":"Bjarte Stubhaug","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Bjarte Stubhaug","raw_affiliation_strings":["Department of Mental Health, Helse Fonna HF, Institute of Clinical Medicine, University of Bergen, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mental Health, Helse Fonna HF, Institute of Clinical Medicine, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013432759","display_name":"Knut\u2010Arne Wensaas","orcid":"https://orcid.org/0000-0001-9113-7843","observed_orcids":["https://orcid.org/0000-0001-9113-7843"]},"institutions":[{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Knut-Arne Wensaas","raw_affiliation_strings":["Department of Global and Public Health, University of Bergen, Bergen, Norway","Research Unit for General Practice, Uni Health, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Global and Public Health, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]},{"raw_affiliation_string":"Research Unit for General Practice, Uni Health, Bergen, Norway","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045190396","display_name":"Guri R\u00f8rtveit","orcid":"https://orcid.org/0000-0002-0389-2169","observed_orcids":["https://orcid.org/0000-0002-0389-2169"]},"institutions":[{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Guri Rortveit","raw_affiliation_strings":["Department of Global and Public Health, University of Bergen, Bergen, Norway","Research Unit for General Practice, Uni Health, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Global and Public Health, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]},{"raw_affiliation_string":"Research Unit for General Practice, Uni Health, Bergen, Norway","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071079480","display_name":"Geir Egil Eide","orcid":"https://orcid.org/0000-0001-9466-1763","observed_orcids":["https://orcid.org/0000-0001-9466-1763"]},"institutions":[{"id":"https://openalex.org/I2800740805","display_name":"Haukeland University Hospital","ror":"https://ror.org/03np4e098","country_code":"NO","type":"healthcare","lineage":["https://openalex.org/I2800740805"]},{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Geir E Eide","raw_affiliation_strings":["Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway","Department of Global and Public Health, University of Bergen, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway","institution_ids":["https://openalex.org/I2800740805"]},{"raw_affiliation_string":"Department of Global and Public Health, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078839162","display_name":"Trygve Hausken","orcid":"https://orcid.org/0000-0001-7080-8396","observed_orcids":["https://orcid.org/0000-0001-7080-8396","https://orcid.org/0009-0001-4879-9566"]},"institutions":[{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Trygve Hausken","raw_affiliation_strings":["Insitute of Medicine, University of Bergen, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Insitute of Medicine, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090166045","display_name":"Nina Langeland","orcid":"https://orcid.org/0000-0003-0278-1616","observed_orcids":["https://orcid.org/0000-0003-0278-1616"]},"institutions":[{"id":"https://openalex.org/I4432739","display_name":"University of Bergen","ror":"https://ror.org/03zga2b32","country_code":"NO","type":"education","lineage":["https://openalex.org/I4432739"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Nina Langeland","raw_affiliation_strings":["Insitute of Medicine, University of Bergen, Bergen, Norway"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Insitute of Medicine, University of Bergen, Bergen, Norway","institution_ids":["https://openalex.org/I4432739"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5108765325"],"corresponding_institution_ids":["https://openalex.org/I2800740805"],"apc_list":{"value":3190,"currency":"USD","value_usd":3190},"apc_paid":{"value":3190,"currency":"USD","value_usd":3190},"fwci":3.5716,"has_fulltext":true,"cited_by_count":53,"citation_normalized_percentile":{"value":0.92835128,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"13","issue":"1","first_page":"28","last_page":"28"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11282","display_name":"Fibromyalgia and Chronic Fatigue Syndrome Research","score":0.9907000064849854,"subfield":{"id":"https://openalex.org/subfields/2738","display_name":"Psychiatry and Mental health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11282","display_name":"Fibromyalgia and Chronic Fatigue Syndrome Research","score":0.9907000064849854,"subfield":{"id":"https://openalex.org/subfields/2738","display_name":"Psychiatry and Mental health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11368","display_name":"Long-Term Effects of COVID-19","score":0.004600000102072954,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11086","display_name":"Parasitic Infections and Diagnostics","score":0.0005000000237487257,"subfield":{"id":"https://openalex.org/subfields/2405","display_name":"Parasitology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/chronic-fatigue-syndrome","display_name":"chronic fatigue syndrome","score":0.9580000042915344},{"id":"https://openalex.org/keywords/giardiasis","display_name":"giardiasis","score":0.9629999995231628},{"id":"https://openalex.org/keywords/giardia-duodenalis","display_name":"Giardia lamblia","score":0.9739999771118164},{"id":"https://openalex.org/keywords/post-infectious-fatigue","display_name":"post-infectious fatigue","score":0.9729999899864197},{"id":"https://openalex.org/keywords/idiopathic-chronic-fatigue","display_name":"idiopathic chronic fatigue","score":0.8740000128746033},{"id":"https://openalex.org/keywords/differential-diagnosis","display_name":"differential diagnosis","score":0.8009999990463257},{"id":"https://openalex.org/keywords/obstructive-sleep-apnea","display_name":"obstructive sleep apnea","score":0.953000009059906},{"id":"https://openalex.org/keywords/depression","display_name":"depression","score":0.9940000176429749},{"id":"https://openalex.org/keywords/anxiety-disorders","display_name":"anxiety disorders","score":0.8709999918937683},{"id":"https://openalex.org/keywords/waterborne-disease-outbreaks","display_name":"waterborne outbreaks","score":0.777999997138977},{"id":"https://openalex.org/keywords/chalder-fatigue-questionnaire","display_name":"Chalder Fatigue Questionnaire","score":0.8960000276565552}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.8530299663543701},{"id":"https://openalex.org/C2779566273","wikidata":"https://www.wikidata.org/wiki/Q209733","display_name":"Chronic fatigue syndrome","level":2,"score":0.8397606611251831},{"id":"https://openalex.org/C3020395016","wikidata":"https://www.wikidata.org/wiki/Q5113974","display_name":"Chronic fatigue","level":3,"score":0.6895665526390076},{"id":"https://openalex.org/C2776867660","wikidata":"https://www.wikidata.org/wiki/Q1814941","display_name":"Depression (economics)","level":2,"score":0.5623783469200134},{"id":"https://openalex.org/C558461103","wikidata":"https://www.wikidata.org/wiki/Q154430","display_name":"Anxiety","level":2,"score":0.530609667301178},{"id":"https://openalex.org/C16568411","wikidata":"https://www.wikidata.org/wiki/Q83042","display_name":"Neurology","level":2,"score":0.5297690033912659},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.5247528553009033},{"id":"https://openalex.org/C41260117","wikidata":"https://www.wikidata.org/wiki/Q668064","display_name":"Hepatology","level":2,"score":0.5211198925971985},{"id":"https://openalex.org/C137627325","wikidata":"https://www.wikidata.org/wiki/Q156318","display_name":"Etiology","level":2,"score":0.5099054574966431},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.5036289095878601},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.4697067439556122},{"id":"https://openalex.org/C107130276","wikidata":"https://www.wikidata.org/wiki/Q133805","display_name":"Epidemiology","level":2,"score":0.4314122498035431},{"id":"https://openalex.org/C187212893","wikidata":"https://www.wikidata.org/wiki/Q123028","display_name":"Pediatrics","level":1,"score":0.35456031560897827},{"id":"https://openalex.org/C118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","level":1,"score":0.35031741857528687},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.3379623293876648},{"id":"https://openalex.org/C139719470","wikidata":"https://www.wikidata.org/wiki/Q39680","display_name":"Macroeconomics","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000368","descriptor_name":"Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001008","descriptor_name":"Anxiety Disorders","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D001008","descriptor_name":"Anxiety Disorders","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D001008","descriptor_name":"Anxiety Disorders","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D003863","descriptor_name":"Depression","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D003863","descriptor_name":"Depression","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D003863","descriptor_name":"Depression","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D003937","descriptor_name":"Diagnosis, Differential","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005500","descriptor_name":"Follow-Up Studies","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005873","descriptor_name":"Giardiasis","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008875","descriptor_name":"Middle Aged","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011795","descriptor_name":"Surveys and Questionnaires","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012891","descriptor_name":"Sleep Apnea Syndromes","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D012891","descriptor_name":"Sleep Apnea Syndromes","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D012891","descriptor_name":"Sleep Apnea Syndromes","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015673","descriptor_name":"Fatigue Syndrome, Chronic","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":true},{"descriptor_ui":"D015673","descriptor_name":"Fatigue Syndrome, Chronic","qualifier_ui":"Q000209","qualifier_name":"etiology","is_major_topic":false},{"descriptor_ui":"D015673","descriptor_name":"Fatigue Syndrome, Chronic","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":true},{"descriptor_ui":"D015897","descriptor_name":"Comorbidity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015995","descriptor_name":"Prevalence","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016829","descriptor_name":"Giardia lamblia","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":5,"locations":[{"id":"doi:10.1186/1471-230x-13-28","doi":"https://doi.org/10.1186/1471-230x-13-28","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1471-230x-13-28","pdf_url":"https://bmcgastroenterol.biomedcentral.com/counter/pdf/10.1186/1471-230X-13-28","source":{"id":"https://openalex.org/S180811554","display_name":"BMC Gastroenterology","issn_l":"1471-230X","issn":["1471-230X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Gastroenterology","raw_type":"journal-article"},{"id":"pmh:oai:europepmc.org:2597188","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3598369","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":null,"raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:3598369","doi":null,"is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/3598369","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Gastroenterol","raw_type":"Text"},{"id":"pmid:23399438","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/23399438","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC gastroenterology","raw_type":"Comparative Study"},{"id":"pmh:oai:bora.uib.no:1956/8318","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/1956/8318","pdf_url":null,"source":{"id":"https://openalex.org/S7407064446","display_name":"NORA - Norwegian Open Research Archives","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"28","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.1186/1471-230x-13-28","doi":"https://doi.org/10.1186/1471-230x-13-28","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1471-230x-13-28","pdf_url":"https://bmcgastroenterol.biomedcentral.com/counter/pdf/10.1186/1471-230X-13-28","source":{"id":"https://openalex.org/S180811554","display_name":"BMC Gastroenterology","issn_l":"1471-230X","issn":["1471-230X"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","oarl","poland-100","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320256","host_organization_name":"BioMed Central","host_organization_lineage":["https://openalex.org/P4310320256","https://openalex.org/P4310319965"],"host_organization_lineage_names":["BioMed Central","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"BMC Gastroenterology","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","score":1.0,"id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2030439620.pdf","grobid_xml":"https://content.openalex.org/works/W2030439620.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W1517101073","https://openalex.org/W1583845171","https://openalex.org/W1795902195","https://openalex.org/W1818735808","https://openalex.org/W1976043522","https://openalex.org/W1995051494","https://openalex.org/W1997020177","https://openalex.org/W2016469109","https://openalex.org/W2022983663","https://openalex.org/W2030957943","https://openalex.org/W2034696264","https://openalex.org/W2048726427","https://openalex.org/W2079342484","https://openalex.org/W2085798593","https://openalex.org/W2096399182","https://openalex.org/W2098287790","https://openalex.org/W2101631166","https://openalex.org/W2101853229","https://openalex.org/W2112802342","https://openalex.org/W2117714758","https://openalex.org/W2121629072","https://openalex.org/W2122681831","https://openalex.org/W2131823335","https://openalex.org/W2136653758","https://openalex.org/W2139900098","https://openalex.org/W2144939514","https://openalex.org/W2155596333","https://openalex.org/W2166386674","https://openalex.org/W2171234435","https://openalex.org/W2171704853","https://openalex.org/W2235276349","https://openalex.org/W2245231029","https://openalex.org/W2338293198","https://openalex.org/W2429518604","https://openalex.org/W3143129303","https://openalex.org/W3149347414","https://openalex.org/W3171418018","https://openalex.org/W4243714145","https://openalex.org/W6830146699"],"related_works":["https://openalex.org/W2096399182","https://openalex.org/W2165921856","https://openalex.org/W2787254291","https://openalex.org/W2144939514","https://openalex.org/W1976043522","https://openalex.org/W2009589382","https://openalex.org/W220090644","https://openalex.org/W2990146625","https://openalex.org/W2582092178","https://openalex.org/W2046785371"],"abstract_inverted_index":{"BACKGROUND:":[0],"A":[1],"high":[2],"prevalence":[3],"of":[4,25,38,177,263],"chronic":[5,48,67,125,131,264],"fatigue":[6,39,49,68,126,132,135,166,207,258,265],"has":[7],"previously":[8],"been":[9],"reported":[10,47],"following":[11],"giardiasis":[12,43,81,275],"after":[13,42,52,60,96,145,239,274],"a":[14,71],"large":[15],"waterborne":[16],"outbreak":[17,85],"in":[18,21,70,91,109,157,162,173,203,209,259,266],"Bergen,":[19],"Norway":[20],"2004.":[22],"The":[23,224],"aim":[24],"this":[26,92,260],"study":[27,73,93,225],"was":[28,155,171,212,276],"to":[29,89,123,219,256,271],"describe":[30],"and":[31,35,102,112,129,142,160,187,191,247],"evaluate":[32],"differential":[33,251],"diagnoses":[34],"natural":[36],"course":[37],"five":[40,94,143,176,188,216,237,272],"years":[41,51,59,95,144,217,221,238,273],"among":[44,74,192],"patients":[45,76,151,179],"who":[46,57,77],"three":[50,58,141,220,270],"the":[53,83,97,210,240,267],"infection.":[54,241],"METHODS:":[55],"Patients":[56],"Giardia":[61,228],"infection":[62,98,146],"met":[63],"Chalder's":[64],"criteria":[65,120],"for":[66],"(n=347)":[69],"questionnaire":[72],"all":[75],"had":[78,180,185,195,201],"laboratory":[79],"confirmed":[80],"during":[82],"Bergen":[84],"(n=1252)":[86],"were":[87,105,121,147,152,249],"invited":[88],"participate":[90],"(n=253).":[99],"Structured":[100],"interviews":[101],"clinical":[103],"examination":[104],"performed":[106],"by":[107,168],"specialists":[108],"psychiatry,":[110],"neurology":[111],"internal":[113],"medicine/infectious":[114],"diseases.":[115],"Fukuda":[116],"et":[117],"al's":[118],"1994":[119],"used":[122],"diagnose":[124],"syndrome":[127],"(CFS)":[128],"idiopathic":[130],"(ICF).":[133],"Self-reported":[134,206],"recorded":[136],"with":[137],"Chalder":[138],"Fatigue":[139,200],"Questionnaire":[140],"compared.":[148],"RESULTS:":[149],"53":[150],"included.":[153],"CFS":[154,232],"diagnosed":[156,172],"41.5%":[158],"(22/53)":[159],"ICF":[161],"13.2%":[163],"(7/53).":[164],"Chronic":[165],"caused":[167],"other":[169],"aetiology":[170],"24.5%":[174],"(13/53);":[175],"these":[178,193],"sleep":[181,243],"apnoea/hypopnoea":[182,244],"syndrome,":[183,245],"six":[184],"depression":[186,246],"anxiety":[189,248],"disorder,":[190],"two":[194],"more":[196],"than":[197],"one":[198],"diagnosis.":[199],"resolved":[202],"20.8%":[204],"(11/53).":[205],"score":[208],"cohort":[211],"significantly":[213],"reduced":[214],"at":[215],"compared":[218],"(p<0.001).":[222],"CONCLUSION:":[223],"shows":[226],"that":[227],"duodenalis":[229],"may":[230],"induce":[231],"persisting":[233],"as":[234,236],"long":[235],"Obstructive":[242],"important":[250],"diagnoses,":[252],"or":[253],"possibly":[254],"comorbidities,":[255],"post-infectious":[257],"study.":[261],"Improvement":[262],"period":[268],"from":[269],"found.":[277]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":4},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":6},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}