{"id":"https://openalex.org/A5113945662","orcid":null,"observed_orcids":[],"display_name":"Koichi Hiraki","raw_author_names":["K. Hiraki","KOICHI HIRAKI","Koichi Hiraki"],"full_name":"Hiraki, Koichi","works_count":40,"cited_by_count":1868,"summary_stats":{"2yr_mean_citedness":1.0,"h_index":18,"i10_index":22},"ids":{"openalex":"https://openalex.org/A5113945662","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210091406","ror":"https://ror.org/00bs3zm56","display_name":"Nagasaki Municipal Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210091406","https://openalex.org/I4405283960"]},"years":[2006]},{"institution":{"id":"https://openalex.org/I4210165237","ror":"https://ror.org/05kd3f793","display_name":"Nagasaki University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210165237"]},"years":[2017]},{"institution":{"id":"https://openalex.org/I43777268","ror":"https://ror.org/058h74p94","display_name":"Nagasaki University","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]},"years":[2015,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10935","display_name":"Endometriosis Research and Treatment","count":26,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T11589","display_name":"Gynecological conditions and treatments","count":18,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T12096","display_name":"Ectopic Pregnancy Diagnosis and Management","count":12,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T11510","display_name":"Reproductive System and Pregnancy","count":8,"subfield":{"id":"https://openalex.org/subfields/2403","display_name":"Immunology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10600","display_name":"Reproductive Health and Contraception","count":6,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T10935","display_name":"Endometriosis Research and Treatment","value":0.0002271,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T12096","display_name":"Ectopic Pregnancy Diagnosis and Management","value":0.0001844,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T11589","display_name":"Gynecological conditions and treatments","value":6.57e-05,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T11510","display_name":"Reproductive System and Pregnancy","value":3.96e-05,"subfield":{"id":"https://openalex.org/subfields/2403","display_name":"Immunology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10989","display_name":"Uterine Myomas and Treatments","value":3.39e-05,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"2779522080","wikidata":"https://www.wikidata.org/wiki/Q205764","display_name":"Endometriosis","score":0.9755762815475464},{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9721553325653076},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.7516374588012695},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.6108774542808533},{"id":"29456083","wikidata":"https://www.wikidata.org/wiki/Q1221899","display_name":"Gynecology","score":0.5887404084205627}],"counts_by_year":[{"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":2005,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2006,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":6,"oa_works_count":3,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":2,"cited_by_count":51},{"year":2013,"works_count":2,"oa_works_count":2,"cited_by_count":75},{"year":2014,"works_count":5,"oa_works_count":1,"cited_by_count":101},{"year":2015,"works_count":1,"oa_works_count":1,"cited_by_count":80},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":94},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":80},{"year":2018,"works_count":3,"oa_works_count":3,"cited_by_count":111},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":136},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":151},{"year":2021,"works_count":3,"oa_works_count":3,"cited_by_count":149},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":146},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":169},{"year":2024,"works_count":2,"oa_works_count":2,"cited_by_count":168},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":119},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":106}],"display_name_alternatives":["K. Hiraki","KOICHI HIRAKI","Koichi Hiraki"],"block_key":"k hiraki","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113945662","awards_count":0,"updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}