{"id":"https://openalex.org/A5113613674","orcid":null,"observed_orcids":[],"display_name":"Katsuzo Kiya","raw_author_names":["K Kiya","K. Kiya","KATSUZO KIYA","Katsuzo KIYA","Katsuzo Kiya","Kiya Katsuzo","Kiya, Katsuzo"],"full_name":"Katsuzo KIYA","works_count":80,"cited_by_count":1182,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":21,"i10_index":28},"ids":{"openalex":"https://openalex.org/A5113613674","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I113306721","ror":"https://ror.org/03t78wx29","display_name":"Hiroshima University","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]},"years":[2015,2009,1995,1994,1993,1992,1991,1990,1989,1984,1983,1982,1981]},{"institution":{"id":"https://openalex.org/I4210107840","ror":"https://ror.org/01rrd4612","display_name":"Hiroshima Prefectural Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210107840","https://openalex.org/I4405284852"]},"years":[2014,2013,2009,2008,2007,2006,2005,2004,2002,2001,2000,1999,1998,1996,1995,1994,1986,1983]},{"institution":{"id":"https://openalex.org/I4210118306","ror":"https://ror.org/02jww9n06","display_name":"Matsuyama Red Cross Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210118306"]},"years":[1993,1992]},{"institution":{"id":"https://openalex.org/I4210125056","ror":"https://ror.org/038dg9e86","display_name":"Hiroshima University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210125056"]},"years":[1995,1994,1993,1992,1991,1990,1989,1982]},{"institution":{"id":"https://openalex.org/I4210129415","ror":"https://ror.org/03nc3zw41","display_name":"Matsue Red Cross Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210129415"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I4210145364","ror":"https://ror.org/03c648b36","display_name":"Ehime Prefectural Central Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210145364"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I4210160686","ror":"https://ror.org/05te51965","display_name":"Kure Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210137409","https://openalex.org/I4210160686"]},"years":[1992]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10129","display_name":"Glioma Diagnosis and Treatment","count":33,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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","count":16,"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/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","count":12,"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/T11251","display_name":"Meningioma and schwannoma management","count":10,"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/T12747","display_name":"Moyamoya disease diagnosis and treatment","count":9,"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"}}],"topic_share":[{"id":"https://openalex.org/T12747","display_name":"Moyamoya disease diagnosis and treatment","value":0.00041,"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/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","value":9.9e-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/T10129","display_name":"Glioma Diagnosis and Treatment","value":9.48e-05,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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":7.5e-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/T11251","display_name":"Meningioma and schwannoma management","value":7.15e-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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9855613708496094},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.6248720288276672},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.6162042021751404},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.47756296396255493},{"id":"142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","score":0.429848849773407}],"counts_by_year":[{"year":1981,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1983,"works_count":7,"oa_works_count":6,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":4,"oa_works_count":4,"cited_by_count":0},{"year":1990,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1991,"works_count":6,"oa_works_count":2,"cited_by_count":0},{"year":1992,"works_count":8,"oa_works_count":1,"cited_by_count":0},{"year":1993,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":1,"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":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":50},{"year":2013,"works_count":2,"oa_works_count":2,"cited_by_count":35},{"year":2014,"works_count":2,"oa_works_count":2,"cited_by_count":37},{"year":2015,"works_count":2,"oa_works_count":0,"cited_by_count":32},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":33},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":27},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":35},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":42},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":28},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":18}],"display_name_alternatives":["K Kiya","K. Kiya","KATSUZO KIYA","Katsuzo KIYA","Katsuzo Kiya","Kiya Katsuzo","Kiya, Katsuzo"],"block_key":"k kiya","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113613674","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5113613674","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}