{"id":"https://openalex.org/W2020459286","doi":"https://doi.org/10.1088/0967-3334/31/4/004","title":"Segmentation of heart sound recordings by a duration-dependent hidden Markov model","display_name":"Segmentation of heart sound recordings by a duration-dependent hidden Markov model","publication_year":2010,"publication_date":"2010-03-05","ids":{"openalex":"https://openalex.org/W2020459286","doi":"https://doi.org/10.1088/0967-3334/31/4/004","mag":"2020459286","pmid":"https://pubmed.ncbi.nlm.nih.gov/20208091"},"language":"en","primary_location":{"id":"doi:10.1088/0967-3334/31/4/004","doi":"https://doi.org/10.1088/0967-3334/31/4/004","is_oa":false,"landing_page_url":"https://doi.org/10.1088/0967-3334/31/4/004","pdf_url":null,"source":{"id":"https://openalex.org/S3164724","display_name":"Physiological Measurement","issn_l":"0967-3334","issn":["0967-3334","1361-6579"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physiological Measurement","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5001670689","display_name":"Samuel Emil Schmidt","orcid":"https://orcid.org/0000-0002-0917-634X","observed_orcids":["https://orcid.org/0000-0002-0917-634X"]},"institutions":[{"id":"https://openalex.org/I891191580","display_name":"Aalborg University","ror":"https://ror.org/04m5j1k67","country_code":"DK","type":"education","lineage":["https://openalex.org/I891191580"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"S E Schmidt","raw_affiliation_strings":["Department of Health Science and Technology, Aalborg University, Denmark. sschmidt@hst.aau.dk","Dept. of Health Sci. & Technol., Aalborg Univ., Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Health Science and Technology, Aalborg University, Denmark. sschmidt@hst.aau.dk","institution_ids":["https://openalex.org/I891191580"]},{"raw_affiliation_string":"Dept. of Health Sci. & Technol., Aalborg Univ., Denmark","institution_ids":["https://openalex.org/I891191580"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057106364","display_name":"Claus Holst\u2010Hansen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2799976261","display_name":"Aalborg University Hospital","ror":"https://ror.org/02jk5qe80","country_code":"DK","type":"healthcare","lineage":["https://openalex.org/I2799976261"]},{"id":"https://openalex.org/I2802335433","display_name":"Aarhus University Hospital","ror":"https://ror.org/040r8fr65","country_code":"DK","type":"healthcare","lineage":["https://openalex.org/I2802335433"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"C Holst-Hansen","raw_affiliation_strings":["Department of Cardiology, Center for Cardiovascular Research, Aalborg Hospital, \u00c5rhus University Hospitals, Denmark","Department of Cardiology, Center for Cardiovascular Research Aalborg Hospital, \u00c5rhus University Hospitals, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Cardiology, Center for Cardiovascular Research, Aalborg Hospital, \u00c5rhus University Hospitals, Denmark","institution_ids":["https://openalex.org/I2799976261","https://openalex.org/I2802335433"]},{"raw_affiliation_string":"Department of Cardiology, Center for Cardiovascular Research Aalborg Hospital, \u00c5rhus University Hospitals, Denmark","institution_ids":["https://openalex.org/I2799976261","https://openalex.org/I2802335433"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083156954","display_name":"Claus Graff","orcid":"https://orcid.org/0000-0001-9650-9781","observed_orcids":["https://orcid.org/0000-0001-9650-9781"]},"institutions":[{"id":"https://openalex.org/I891191580","display_name":"Aalborg University","ror":"https://ror.org/04m5j1k67","country_code":"DK","type":"education","lineage":["https://openalex.org/I891191580"]}],"countries":["DK"],"is_corresponding":true,"raw_author_name":"C Graff","raw_affiliation_strings":["Medical Informatics Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Informatics Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark","institution_ids":["https://openalex.org/I891191580"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020617943","display_name":"Egon Steen Toft","orcid":"https://orcid.org/0000-0001-6423-9692","observed_orcids":["https://orcid.org/0000-0001-6423-9692"]},"institutions":[{"id":"https://openalex.org/I891191580","display_name":"Aalborg University","ror":"https://ror.org/04m5j1k67","country_code":"DK","type":"education","lineage":["https://openalex.org/I891191580"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"E Toft","raw_affiliation_strings":["Medical Informatics Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Informatics Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark","institution_ids":["https://openalex.org/I891191580"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080976736","display_name":"Johannes J. Struijk","orcid":"https://orcid.org/0000-0002-8713-1913","observed_orcids":["https://orcid.org/0000-0002-8713-1913"]},"institutions":[{"id":"https://openalex.org/I891191580","display_name":"Aalborg University","ror":"https://ror.org/04m5j1k67","country_code":"DK","type":"education","lineage":["https://openalex.org/I891191580"]}],"countries":["DK"],"is_corresponding":false,"raw_author_name":"J J Struijk","raw_affiliation_strings":["Medical Informatics Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Medical Informatics Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark","institution_ids":["https://openalex.org/I891191580"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5083156954"],"corresponding_institution_ids":["https://openalex.org/I891191580"],"apc_list":{"value":3325,"currency":"USD","value_usd":3325},"apc_paid":null,"fwci":3.1936,"has_fulltext":false,"cited_by_count":298,"citation_normalized_percentile":{"value":0.91405764,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":100},"biblio":{"volume":"31","issue":"4","first_page":"513","last_page":"529"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"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/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"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/T11021","display_name":"ECG Monitoring and Analysis","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"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/T11396","display_name":"Artificial Intelligence in Healthcare","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3605","display_name":"Health Information Management"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/heart-sound-segmentation","display_name":"heart sound segmentation","score":0.9869999885559082},{"id":"https://openalex.org/keywords/first-heart-sound","display_name":"first heart sound","score":0.656000018119812},{"id":"https://openalex.org/keywords/second-heart-sound","display_name":"second heart sound","score":1.0},{"id":"https://openalex.org/keywords/digital-stethoscope","display_name":"digital stethoscope","score":0.8700000047683716},{"id":"https://openalex.org/keywords/background-noise","display_name":"background noise","score":0.6710000038146973}],"concepts":[{"id":"https://openalex.org/C2779435589","wikidata":"https://www.wikidata.org/wiki/Q967103","display_name":"Heart sounds","level":2,"score":0.8659610748291016},{"id":"https://openalex.org/C2779055095","wikidata":"https://www.wikidata.org/wiki/Q162339","display_name":"Stethoscope","level":2,"score":0.8099758625030518},{"id":"https://openalex.org/C112758219","wikidata":"https://www.wikidata.org/wiki/Q16038819","display_name":"Duration (music)","level":2,"score":0.581748902797699},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.5704559087753296},{"id":"https://openalex.org/C203718221","wikidata":"https://www.wikidata.org/wiki/Q491713","display_name":"Sound (geography)","level":2,"score":0.537774920463562},{"id":"https://openalex.org/C23224414","wikidata":"https://www.wikidata.org/wiki/Q176769","display_name":"Hidden Markov model","level":2,"score":0.5053017735481262},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.4586086869239807},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4356255531311035},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.32907581329345703},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2824866473674774},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.1930484175682068},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.15871310234069824},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D001185","descriptor_name":"Artificial Intelligence","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D001185","descriptor_name":"Artificial Intelligence","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D001185","descriptor_name":"Artificial Intelligence","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D003936","descriptor_name":"Diagnosis, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D003936","descriptor_name":"Diagnosis, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D003936","descriptor_name":"Diagnosis, Computer-Assisted","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006326","descriptor_name":"Heart Auscultation","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006326","descriptor_name":"Heart Auscultation","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006326","descriptor_name":"Heart Auscultation","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008390","descriptor_name":"Markov Chains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008390","descriptor_name":"Markov Chains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008390","descriptor_name":"Markov Chains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D010363","descriptor_name":"Pattern Recognition, Automated","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D012680","descriptor_name":"Sensitivity and Specificity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012680","descriptor_name":"Sensitivity and Specificity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012680","descriptor_name":"Sensitivity and Specificity","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":4,"locations":[{"id":"doi:10.1088/0967-3334/31/4/004","doi":"https://doi.org/10.1088/0967-3334/31/4/004","is_oa":false,"landing_page_url":"https://doi.org/10.1088/0967-3334/31/4/004","pdf_url":null,"source":{"id":"https://openalex.org/S3164724","display_name":"Physiological Measurement","issn_l":"0967-3334","issn":["0967-3334","1361-6579"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physiological Measurement","raw_type":"journal-article"},{"id":"pmid:20208091","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/20208091","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":"Physiological measurement","raw_type":"Evaluation Study"},{"id":"pmh:oai:pure.atira.dk:publications/45ad38e0-31eb-11df-b84e-000ea68e967b","doi":null,"is_oa":false,"landing_page_url":"https://vbn.aau.dk/da/publications/45ad38e0-31eb-11df-b84e-000ea68e967b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401731","display_name":"VBN Forskningsportal (Aalborg Universitet)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I891191580","host_organization_name":"Aalborg University","host_organization_lineage":["https://openalex.org/I891191580"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Schmidt, S, Holst-Hansen, C, Graff, C, Toft, E & Struijk, J 2010, 'Segmentation of heart sound recordings by a duration-dependent hidden Markov model', Physiological Measurement, vol. 31, no. 4, pp. 513-529. https://doi.org/10.1088/0967-3334/31/4/004","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:pure.atira.dk:publications/f3fe2beb-2fd2-4bfa-8f7a-42466bae1154","doi":null,"is_oa":false,"landing_page_url":"https://pure.au.dk/portal/en/publications/f3fe2beb-2fd2-4bfa-8f7a-42466bae1154","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Schmidt, S E, Holst-Hansen, C, Graff, C, Toft, E & Struijk, J J 2010, 'Segmentation of heart sound recordings by a duration-dependent hidden Markov model', Physiological Measurement, vol. 31, no. 4, pp. 513-29. https://doi.org/10.1088/0967-3334/31/4/004","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":0.8371999859809875}],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W1486263275","https://openalex.org/W1501556024","https://openalex.org/W1751223533","https://openalex.org/W1996415715","https://openalex.org/W2003590674","https://openalex.org/W2008709759","https://openalex.org/W2015570787","https://openalex.org/W2020018978","https://openalex.org/W2024979101","https://openalex.org/W2040716668","https://openalex.org/W2083083343","https://openalex.org/W2086699924","https://openalex.org/W2103272816","https://openalex.org/W2106578604","https://openalex.org/W2119654425","https://openalex.org/W2125838338","https://openalex.org/W2126648880","https://openalex.org/W2132568683","https://openalex.org/W2135364714","https://openalex.org/W2142704046","https://openalex.org/W2156095312","https://openalex.org/W2163518096","https://openalex.org/W2263498095","https://openalex.org/W2412385255","https://openalex.org/W2797726893"],"related_works":["https://openalex.org/W2095324605","https://openalex.org/W177166743","https://openalex.org/W2101079765","https://openalex.org/W2358941527","https://openalex.org/W2145748389","https://openalex.org/W2136903316","https://openalex.org/W2026408911","https://openalex.org/W2349075084","https://openalex.org/W2055070405","https://openalex.org/W2010833594"],"abstract_inverted_index":{"Digital":[0],"stethoscopes":[1,43],"offer":[2],"new":[3],"opportunities":[4],"for":[5,61,119,177],"computerized":[6],"analysis":[7,33],"of":[8,12,37,64,74,81,86,116,131,149,171,179],"heart":[9,13,24,38,65,76,103,173,182],"sounds.":[10,66,183],"Segmentation":[11],"sound":[14,25],"recordings":[15],"into":[16],"periods":[17],"related":[18],"to":[19,135,155],"the":[20,32,70,82,84,87,165,172],"first":[21],"and":[22,27,90,100,127,144,175],"second":[23],"(S1":[26],"S2)":[28],"is":[29,47,59,167],"fundamental":[30],"in":[31,44,140],"process.":[34],"However,":[35],"segmentation":[36,63,178],"sounds":[39,104,129,147,152],"recorded":[40,105,181],"with":[41,102,107],"handheld":[42,111],"clinical":[45],"environments":[46],"often":[48],"complicated":[49],"by":[50],"background":[51],"noise.":[52],"A":[53],"duration-dependent":[54],"hidden":[55],"Markov":[56],"model":[57,93,97,170],"(DHMM)":[58],"proposed":[60],"robust":[62],"The":[67,95,122],"DHMM":[68,96,123,166],"identifies":[69],"most":[71],"likely":[72],"sequence":[73],"physiological":[75],"sounds,":[77],"based":[78],"on":[79],"duration":[80],"events,":[83],"amplitude":[85],"signal":[88],"envelope":[89],"a":[91,108,114],"predefined":[92],"structure.":[94],"was":[98],"developed":[99],"tested":[101],"bedside":[106],"commercially":[109],"available":[110],"stethoscope":[112],"from":[113],"population":[115],"patients":[117,143],"referred":[118],"coronary":[120],"arterioangiography.":[121],"identified":[124,151],"890":[125],"S1":[126],"S2":[128],"out":[130,148],"901":[132],"which":[133,153],"corresponds":[134,154],"98.8%":[136],"(CI:":[137,157],"97.8-99.3%)":[138],"sensitivity":[139],"73":[141],"test":[142],"13":[145],"misplaced":[146],"903":[150],"98.6%":[156],"97.6-99.1%)":[158],"positive":[159],"predictivity.":[160],"These":[161],"results":[162],"indicate":[163],"that":[164],"an":[168],"appropriate":[169],"cycle":[174],"suitable":[176],"clinically":[180]},"counts_by_year":[{"year":2026,"cited_by_count":16},{"year":2025,"cited_by_count":24},{"year":2024,"cited_by_count":31},{"year":2023,"cited_by_count":31},{"year":2022,"cited_by_count":27},{"year":2021,"cited_by_count":25},{"year":2020,"cited_by_count":27},{"year":2019,"cited_by_count":28},{"year":2018,"cited_by_count":23},{"year":2017,"cited_by_count":16},{"year":2016,"cited_by_count":19},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":10},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":4}],"updated_date":"2026-10-15T10:00:46.086208","created_date":"2025-10-10T00:00:00"}