{"id":"https://openalex.org/W43228510","doi":null,"title":"Observations on the length and diameter of vessels forming the circle of Willis.","display_name":"Observations on the length and diameter of vessels forming the circle of Willis.","publication_year":1981,"publication_date":"1981-10-01","ids":{"openalex":"https://openalex.org/W43228510","mag":"43228510","pmid":"https://pubmed.ncbi.nlm.nih.gov/7328048","pmcid":"https://www.ncbi.nlm.nih.gov/pmc/articles/1167613"},"language":"en","primary_location":{"id":"pmid:7328048","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/7328048","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":"Journal of anatomy","raw_type":"Journal Article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"S Kamath","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"S Kamath","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":160,"citation_normalized_percentile":{"value":0.0048659,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":100},"biblio":{"volume":"133","issue":"Pt 3","first_page":"419","last_page":"23"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10420","display_name":"Intracranial Aneurysms: Treatment and Complications","score":0.6377000212669373,"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"}},"topics":[{"id":"https://openalex.org/T10420","display_name":"Intracranial Aneurysms: Treatment and Complications","score":0.6377000212669373,"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/T10816","display_name":"Cerebrovascular and Carotid Artery Diseases","score":0.1964000016450882,"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/T14134","display_name":"Classical Anatomy and Histology","score":0.10939999669790268,"subfield":{"id":"https://openalex.org/subfields/2702","display_name":"Anatomy"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/circle-of-willis","display_name":"circle of Willis","score":0.9950000047683716},{"id":"https://openalex.org/keywords/cerebral-arteries","display_name":"cerebral arteries","score":0.6729999780654907},{"id":"https://openalex.org/keywords/anterior-communicating-artery","display_name":"anterior communicating artery","score":0.8980000019073486},{"id":"https://openalex.org/keywords/posterior-communicating-artery","display_name":"posterior communicating artery","score":0.9959999918937683},{"id":"https://openalex.org/keywords/posterior-cerebral-artery","display_name":"posterior cerebral artery","score":0.9739999771118164},{"id":"https://openalex.org/keywords/vessel-diameter","display_name":"vessel diameter","score":0.6269999742507935},{"id":"https://openalex.org/keywords/vessel-length","display_name":"vessel length","score":0.9259999990463257},{"id":"https://openalex.org/keywords/coefficient-of-variation","display_name":"coefficient of variation","score":0.7149999737739563},{"id":"https://openalex.org/keywords/hemispheric-asymmetry","display_name":"hemispheric lateralization","score":0.7599999904632568},{"id":"https://openalex.org/keywords/cerebral-blood-supply","display_name":"cerebral blood supply","score":0.7509999871253967},{"id":"https://openalex.org/keywords/cadaveric-brain","display_name":"cadaveric brain","score":0.6759999990463257}],"concepts":[{"id":"https://openalex.org/C2780944724","wikidata":"https://www.wikidata.org/wiki/Q487595","display_name":"Circle of Willis","level":2,"score":0.918141782283783},{"id":"https://openalex.org/C105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","level":1,"score":0.7805713415145874},{"id":"https://openalex.org/C171614378","wikidata":"https://www.wikidata.org/wiki/Q5064093","display_name":"Cerebral arteries","level":2,"score":0.6601768732070923},{"id":"https://openalex.org/C2780540156","wikidata":"https://www.wikidata.org/wiki/Q185438","display_name":"Posterior communicating artery","level":3,"score":0.6566670536994934},{"id":"https://openalex.org/C91762617","wikidata":"https://www.wikidata.org/wiki/Q48422","display_name":"Cadaver","level":2,"score":0.6034681797027588},{"id":"https://openalex.org/C2778394091","wikidata":"https://www.wikidata.org/wiki/Q492482","display_name":"Posterior cerebral artery","level":4,"score":0.5547642111778259},{"id":"https://openalex.org/C2993270971","wikidata":"https://www.wikidata.org/wiki/Q11068","display_name":"Blood supply","level":2,"score":0.5250461101531982},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.34944188594818115},{"id":"https://openalex.org/C2775841333","wikidata":"https://www.wikidata.org/wiki/Q498179","display_name":"Middle cerebral artery","level":3,"score":0.24015817046165466},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.15183231234550476},{"id":"https://openalex.org/C2776098176","wikidata":"https://www.wikidata.org/wiki/Q189389","display_name":"Aneurysm","level":2,"score":0.14471200108528137},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.134784996509552},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.10097914934158325},{"id":"https://openalex.org/C541997718","wikidata":"https://www.wikidata.org/wiki/Q188151","display_name":"Ischemia","level":2,"score":0.0}],"mesh":[{"descriptor_ui":"D000886","descriptor_name":"Anthropometry","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002941","descriptor_name":"Circle of Willis","qualifier_ui":"Q000033","qualifier_name":"anatomy & histology","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012016","descriptor_name":"Reference Values","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"pmid:7328048","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/7328048","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":"Journal of anatomy","raw_type":"Journal Article"},{"id":"mag:43228510","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/7328048","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":null,"is_accepted":false,"is_published":false,"raw_source_name":"PubMed","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6240000128746033,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W23072472","https://openalex.org/W304523930","https://openalex.org/W2071840132","https://openalex.org/W2115138428","https://openalex.org/W2143627053","https://openalex.org/W2151593258","https://openalex.org/W2468939248"],"related_works":["https://openalex.org/W7143528298","https://openalex.org/W2618164412","https://openalex.org/W2125317313","https://openalex.org/W135284408","https://openalex.org/W2358219095","https://openalex.org/W1894242971","https://openalex.org/W2346010152","https://openalex.org/W2331427182","https://openalex.org/W4309655427","https://openalex.org/W1970397355"],"abstract_inverted_index":{"The":[0,17,86],"dimensions":[1],"of":[2,7,19,48,74,82],"vessels":[3,47],"forming":[4],"the":[5,26,37,57,72,75,83],"circle":[6],"Willis":[8],"were":[9],"studied":[10],"in":[11,45,56],"100":[12],"fixed":[13],"brains":[14],"from":[15],"cadavers.":[16],"coefficient":[18],"variation":[20],"for":[21,25,32,36],"length":[22],"was":[23,34,52],"greatest":[24,35],"anterior":[27],"communicating":[28,39,63,80],"artery,":[29],"and":[30,51,61,78],"that":[31],"diameter":[33,43],"posterior":[38,58,62,76,79],"artery.":[40],"Abnormally":[41],"narrow":[42],"occurred":[44],"25":[46],"24":[49],"circles":[50],"most":[53],"frequently":[54],"seen":[55],"cerebral":[59,77,88],"(11)":[60],"arteries":[64,81],"(10).":[65],"A":[66],"significant":[67],"inverse":[68],"relationship":[69],"existed":[70],"between":[71],"diameters":[73],"same":[84],"side.":[85],"left":[87],"hemisphere":[89],"appeared":[90],"to":[91],"enjoy":[92],"a":[93],"better":[94],"blood":[95],"supply.":[96]},"counts_by_year":[{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":14},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":14},{"year":2017,"cited_by_count":8},{"year":2016,"cited_by_count":12},{"year":2015,"cited_by_count":14},{"year":2014,"cited_by_count":8},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
