{"id":"https://openalex.org/W2461761474","doi":"https://doi.org/10.1093/sleep/23.4.1a","title":"The Case of a Missing PLM","display_name":"The Case of a Missing PLM","publication_year":2000,"publication_date":"2000-06-01","ids":{"openalex":"https://openalex.org/W2461761474","doi":"https://doi.org/10.1093/sleep/23.4.1a","mag":"2461761474","pmid":"https://pubmed.ncbi.nlm.nih.gov/10875552"},"language":"en","primary_location":{"id":"doi:10.1093/sleep/23.4.1a","doi":"https://doi.org/10.1093/sleep/23.4.1a","is_oa":false,"landing_page_url":"https://doi.org/10.1093/sleep/23.4.1a","pdf_url":null,"source":{"id":"https://openalex.org/S42921845","display_name":"SLEEP","issn_l":"0161-8105","issn":["0161-8105","1550-9109"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","erih-plus","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sleep","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5008053161","display_name":"Baruch El\u2010Ad","orcid":"https://orcid.org/0000-0003-2184-5849","observed_orcids":["https://orcid.org/0000-0003-2184-5849"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210114445","display_name":"Michigan Medicine","ror":"https://ror.org/01zcpa714","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Baruch El-Ad","raw_affiliation_strings":["Sleep Disorders Center, Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sleep Disorders Center, Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210114445"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091584382","display_name":"Ronald David Chervin","orcid":"https://orcid.org/0000-0002-8227-5133","observed_orcids":["https://orcid.org/0000-0002-8227-5133"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210114445","display_name":"Michigan Medicine","ror":"https://ror.org/01zcpa714","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Ronald D. Chervin","raw_affiliation_strings":["Sleep Disorders Center, Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sleep Disorders Center, Department of Neurology, University of Michigan Medical Center, Ann Arbor, Michigan","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210114445"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5091584382"],"corresponding_institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210114445"],"apc_list":{"value":4388,"currency":"USD","value_usd":4388},"apc_paid":null,"fwci":1.7952,"has_fulltext":true,"cited_by_count":27,"citation_normalized_percentile":{"value":0.85482704,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"23","issue":"4","first_page":"1","last_page":"2"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10316","display_name":"Sleep and related disorders","score":0.8500999808311462,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10316","display_name":"Sleep and related disorders","score":0.8500999808311462,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10234","display_name":"Obstructive Sleep Apnea Research","score":0.06350000202655792,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T10985","display_name":"Sleep and Wakefulness Research","score":0.022700000554323196,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/product-liability","display_name":"product liability","score":0.32600000500679016}],"concepts":[{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.41991299390792847},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.35743236541748047},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.33800458908081055},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1534329354763031},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.14584454894065857}],"mesh":[{"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":"D011175","descriptor_name":"Positive-Pressure Respiration","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D012720","descriptor_name":"Severity of Illness Index","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017286","descriptor_name":"Polysomnography","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":false},{"descriptor_ui":"D020181","descriptor_name":"Sleep Apnea, Obstructive","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D020181","descriptor_name":"Sleep Apnea, Obstructive","qualifier_ui":"Q000628","qualifier_name":"therapy","is_major_topic":false},{"descriptor_ui":"D020189","descriptor_name":"Nocturnal Myoclonus Syndrome","qualifier_ui":"Q000150","qualifier_name":"complications","is_major_topic":false},{"descriptor_ui":"D020189","descriptor_name":"Nocturnal Myoclonus Syndrome","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1093/sleep/23.4.1a","doi":"https://doi.org/10.1093/sleep/23.4.1a","is_oa":false,"landing_page_url":"https://doi.org/10.1093/sleep/23.4.1a","pdf_url":null,"source":{"id":"https://openalex.org/S42921845","display_name":"SLEEP","issn_l":"0161-8105","issn":["0161-8105","1550-9109"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","erih-plus","jufo-2","ki-jl-2","medline","norway-2","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310311648","host_organization_name":"Oxford University Press","host_organization_lineage":["https://openalex.org/P4310311648","https://openalex.org/P4310311647"],"host_organization_lineage_names":["Oxford University Press","University of Oxford"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sleep","raw_type":"journal-article"},{"id":"pmid:10875552","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10875552","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":"Sleep","raw_type":"Case Reports"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2171399976","https://openalex.org/W7029405925","https://openalex.org/W4411742402","https://openalex.org/W4238174736","https://openalex.org/W4206606767","https://openalex.org/W3019878921","https://openalex.org/W4249750137","https://openalex.org/W2049509838","https://openalex.org/W4245212111","https://openalex.org/W4206422641"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-07-22T00:00:00"}