{"id":"https://openalex.org/A5083449807","orcid":null,"observed_orcids":[],"display_name":"Chizu Koyama","raw_author_names":["Chizu KOYAMA","Chizu Koyama"],"full_name":"Chizu Koyama","works_count":3,"cited_by_count":159,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":3},"ids":{"openalex":"https://openalex.org/A5083449807","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I49155475","ror":"https://ror.org/04wcpjy25","display_name":"Hokuriku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I49155475"]},"years":[2005]}],"last_known_institutions":[{"id":"https://openalex.org/I49155475","ror":"https://ror.org/04wcpjy25","display_name":"Hokuriku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I49155475"]}],"topics":[{"id":"https://openalex.org/T10452","display_name":"Iron Metabolism and Disorders","count":3,"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"}},{"id":"https://openalex.org/T13481","display_name":"Neurological diseases and metabolism","count":3,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10554","display_name":"Hemoglobinopathies and Related Disorders","count":2,"subfield":{"id":"https://openalex.org/subfields/2716","display_name":"Genetics (clinical)"},"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/T11369","display_name":"Genetic factors in colorectal cancer","count":1,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic 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/T13481","display_name":"Neurological diseases and metabolism","value":4.79e-05,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10452","display_name":"Iron Metabolism and Disorders","value":1.11e-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"}},{"id":"https://openalex.org/T10554","display_name":"Hemoglobinopathies and Related Disorders","value":9e-06,"subfield":{"id":"https://openalex.org/subfields/2716","display_name":"Genetics (clinical)"},"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/T11369","display_name":"Genetic factors in colorectal cancer","value":5.2e-06,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"2776590208","wikidata":"https://www.wikidata.org/wiki/Q2025687","display_name":"Hemochromatosis","score":0.8748646974563599},{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.6914330720901489},{"id":"104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","score":0.5391069054603577},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.48921704292297363},{"id":"134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","score":0.37038373947143555}],"counts_by_year":[{"year":2005,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":2}],"display_name_alternatives":["Chizu KOYAMA","Chizu Koyama"],"block_key":"c koyama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5083449807","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}
