{"id":"https://openalex.org/A5060034072","orcid":"https://orcid.org/0000-0003-3500-5736","observed_orcids":["https://orcid.org/0000-0003-3500-5736"],"display_name":"Yuichiro Kikkawa","raw_author_names":["Kikkawa Yuichiro","Y. Kikkawa","Yuichiro KIKKAWA","Yuichiro Kikkawa"],"full_name":"Kikkawa, Yuichiro","works_count":91,"cited_by_count":756,"summary_stats":{"2yr_mean_citedness":1.6666666666666667,"h_index":16,"i10_index":29},"ids":{"openalex":"https://openalex.org/A5060034072","orcid":"https://orcid.org/0000-0003-3500-5736","observed_orcids":["https://orcid.org/0000-0003-3500-5736"]},"affiliations":[{"institution":{"id":"https://openalex.org/I135598925","ror":"https://ror.org/00p4k0j84","display_name":"Kyushu University","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},"years":[2015,2014,2013,2012,2011,2010,2008,2007]},{"institution":{"id":"https://openalex.org/I2799799709","ror":"https://ror.org/03ykm7q16","display_name":"Saitama Prefecture","country_code":"JP","type":"other","lineage":["https://openalex.org/I2799799709"]},"years":[2021,2019]},{"institution":{"id":"https://openalex.org/I3018397740","ror":"https://ror.org/022296476","display_name":"National Kyushu Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I3018397740","https://openalex.org/I4210137409"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I4210132452","ror":"https://ror.org/03ftky336","display_name":"Saitama International Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210132452"]},"years":[2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014]},{"institution":{"id":"https://openalex.org/I4405270784","ror":"https://ror.org/01an3wk58","display_name":"Saitama Cardiovascular and Respiratory Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405270784"]},"years":[2026,2025,2024,2023,2022,2021,2020,2019]},{"institution":{"id":"https://openalex.org/I8588240","ror":"https://ror.org/04zb31v77","display_name":"Saitama Medical University","country_code":"JP","type":"education","lineage":["https://openalex.org/I8588240"]},"years":[2024,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014]}],"last_known_institutions":[{"id":"https://openalex.org/I4405270784","ror":"https://ror.org/01an3wk58","display_name":"Saitama Cardiovascular and Respiratory Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405270784"]}],"topics":[{"id":"https://openalex.org/T10420","display_name":"Intracranial Aneurysms: Treatment and Complications","count":62,"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/T11763","display_name":"Intracerebral and Subarachnoid Hemorrhage Research","count":28,"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","count":25,"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/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","count":18,"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/T12082","display_name":"Takotsubo Cardiomyopathy and Associated Phenomena","count":17,"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":0.0006385,"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/T10420","display_name":"Intracranial Aneurysms: Treatment and Complications","value":0.0002909,"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/T11763","display_name":"Intracerebral and Subarachnoid Hemorrhage Research","value":0.0001927,"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/T12082","display_name":"Takotsubo Cardiomyopathy and Associated Phenomena","value":0.0001731,"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/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","value":0.0001487,"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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9909235239028931},{"id":"2777736543","wikidata":"https://www.wikidata.org/wiki/Q693442","display_name":"Subarachnoid hemorrhage","score":0.8802777528762817},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.6989458799362183},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.6964230537414551},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.6457650661468506}],"counts_by_year":[{"year":2006,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":6,"oa_works_count":4,"cited_by_count":19},{"year":2013,"works_count":4,"oa_works_count":3,"cited_by_count":14},{"year":2014,"works_count":7,"oa_works_count":2,"cited_by_count":32},{"year":2015,"works_count":7,"oa_works_count":2,"cited_by_count":27},{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":28},{"year":2017,"works_count":8,"oa_works_count":3,"cited_by_count":30},{"year":2018,"works_count":7,"oa_works_count":2,"cited_by_count":48},{"year":2019,"works_count":12,"oa_works_count":4,"cited_by_count":47},{"year":2020,"works_count":7,"oa_works_count":4,"cited_by_count":58},{"year":2021,"works_count":7,"oa_works_count":6,"cited_by_count":65},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":73},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":68},{"year":2024,"works_count":4,"oa_works_count":3,"cited_by_count":65},{"year":2025,"works_count":2,"oa_works_count":1,"cited_by_count":97},{"year":2026,"works_count":3,"oa_works_count":3,"cited_by_count":65}],"display_name_alternatives":["Kikkawa Yuichiro","Y. Kikkawa","Yuichiro KIKKAWA","Yuichiro Kikkawa"],"block_key":"y kikkawa","works_api_url":"https://api.openalex.org/works?filter=author.id:A5060034072","awards_count":3,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5060034072","updated_date":"2026-11-11T13:02:13","created_date":"2016-06-24T00:00:00"}
