{"id":"https://openalex.org/A5088424271","orcid":"https://orcid.org/0000-0002-6588-3305","observed_orcids":["https://orcid.org/0000-0002-6588-3305"],"display_name":"Michio Usui","raw_author_names":["M Usui","M. Usui","Michio USUI","Michio Usui","Usui Michio"],"full_name":"Michio Usui","works_count":50,"cited_by_count":256,"summary_stats":{"2yr_mean_citedness":1.7333333333333334,"h_index":10,"i10_index":11},"ids":{"openalex":"https://openalex.org/A5088424271","orcid":"https://orcid.org/0000-0002-6588-3305","observed_orcids":["https://orcid.org/0000-0002-6588-3305"]},"affiliations":[{"institution":{"id":"https://openalex.org/I125602781","ror":"https://ror.org/051k3eh31","display_name":"Tokyo Medical and Dental University","country_code":"JP","type":"education","lineage":["https://openalex.org/I125602781","https://openalex.org/I4400009020"]},"years":[2020,1996]},{"institution":{"id":"https://openalex.org/I4210125888","ror":"https://ror.org/03f8drh85","display_name":"Haibara General Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210125888"]},"years":[2005,2004]},{"institution":{"id":"https://openalex.org/I4210132540","ror":"https://ror.org/03q11y497","display_name":"Japan Community Healthcare Organization","country_code":"JP","type":"government","lineage":["https://openalex.org/I4210132540"]},"years":[2014]},{"institution":{"id":"https://openalex.org/I4210153683","ror":"https://ror.org/057edve92","display_name":"Tokyo Yamate Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210132540","https://openalex.org/I4210153683"]},"years":[2026,2025,2024,2023,2022,2021,2020,2018,2014,2012,2011]}],"last_known_institutions":[{"id":"https://openalex.org/I4210153683","ror":"https://ror.org/057edve92","display_name":"Tokyo Yamate Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210132540","https://openalex.org/I4210153683"]}],"topics":[{"id":"https://openalex.org/T10618","display_name":"Aortic Disease and Treatment Approaches","count":16,"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/T10983","display_name":"Aortic aneurysm repair treatments","count":13,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T10292","display_name":"Acute Myocardial Infarction Research","count":10,"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/T11310","display_name":"Connective tissue disorders research","count":9,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10193","display_name":"Coronary Interventions and Diagnostics","count":8,"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"}}],"topic_share":[{"id":"https://openalex.org/T12747","display_name":"Moyamoya disease diagnosis and treatment","value":9.12e-05,"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/T10983","display_name":"Aortic aneurysm repair treatments","value":7.36e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T11310","display_name":"Connective tissue disorders research","value":6.39e-05,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10618","display_name":"Aortic Disease and Treatment Approaches","value":5.67e-05,"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/T12352","display_name":"Heparin-Induced Thrombocytopenia and Thrombosis","value":3.18e-05,"subfield":{"id":"https://openalex.org/subfields/2720","display_name":"Hematology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9839937090873718},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.8522999882698059},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.8419628739356995},{"id":"2779980429","wikidata":"https://www.wikidata.org/wiki/Q101004","display_name":"Aorta","score":0.5178328156471252},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.5035631060600281}],"counts_by_year":[{"year":1996,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":1,"cited_by_count":2},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2014,"works_count":2,"oa_works_count":1,"cited_by_count":2},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":2},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":1},{"year":2020,"works_count":9,"oa_works_count":6,"cited_by_count":5},{"year":2021,"works_count":5,"oa_works_count":3,"cited_by_count":14},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":26},{"year":2023,"works_count":6,"oa_works_count":6,"cited_by_count":47},{"year":2024,"works_count":5,"oa_works_count":3,"cited_by_count":41},{"year":2025,"works_count":5,"oa_works_count":5,"cited_by_count":51},{"year":2026,"works_count":5,"oa_works_count":3,"cited_by_count":46}],"display_name_alternatives":["M Usui","M. Usui","Michio USUI","Michio Usui","Usui Michio"],"block_key":"m usui","works_api_url":"https://api.openalex.org/works?filter=author.id:A5088424271","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5088424271","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}