{"id":"https://openalex.org/A5103407751","orcid":null,"observed_orcids":[],"display_name":"Yukio Nakajima","raw_author_names":["Y Nakajima","Yukio Nakajima"],"full_name":"Yukio Nakajima","works_count":17,"cited_by_count":3511,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":13,"i10_index":15},"ids":{"openalex":"https://openalex.org/A5103407751","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I105296287","ror":"https://ror.org/057xtrt18","display_name":"Kurume University","country_code":"JP","type":"education","lineage":["https://openalex.org/I105296287"]},"years":[1984,1977]},{"institution":{"id":"https://openalex.org/I145311948","ror":"https://ror.org/00za53h95","display_name":"Johns Hopkins University","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]},"years":[2007]},{"institution":{"id":"https://openalex.org/I146500386","ror":"https://ror.org/010hz0g26","display_name":"Jichi Medical University","country_code":"JP","type":"education","lineage":["https://openalex.org/I146500386"]},"years":[1977]},{"institution":{"id":"https://openalex.org/I159385669","ror":"https://ror.org/01hjzeq58","display_name":"Chiba University","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]},"years":[1988,1985,1984,1983,1982,1978,1977]},{"institution":{"id":"https://openalex.org/I4210087348","ror":"https://ror.org/0025ww868","display_name":"National Cancer Centre Japan","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210087348"]},"years":[1977]},{"institution":{"id":"https://openalex.org/I4210099339","ror":"https://ror.org/0126xah18","display_name":"Chiba University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210099339"]},"years":[1984,1977]},{"institution":{"id":"https://openalex.org/I4210136522","ror":"https://ror.org/03kjjhe36","display_name":"Tokyo Women's Medical University","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210136522"]},"years":[1984,1977]},{"institution":{"id":"https://openalex.org/I4405285273","ror":"https://ror.org/053hhpd64","display_name":"National Cancer Center Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210087348","https://openalex.org/I4405285273"]},"years":[1984]},{"institution":{"id":"https://openalex.org/I4405286151","ror":"https://ror.org/0191nbh46","display_name":"Institute of Gastroenterology, Tokyo Women's Medical University","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210098959","https://openalex.org/I4405286151"]},"years":[1984,1977]}],"last_known_institutions":[{"id":"https://openalex.org/I145311948","ror":"https://ror.org/00za53h95","display_name":"Johns Hopkins University","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]}],"topics":[{"id":"https://openalex.org/T10073","display_name":"Hepatocellular Carcinoma Treatment and Prognosis","count":7,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T10337","display_name":"Liver Disease and Transplantation","count":5,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T10966","display_name":"Liver physiology and pathology","count":5,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T10340","display_name":"Hepatitis B Virus Studies","count":4,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"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/T10151","display_name":"Hepatitis C virus research","count":2,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T10073","display_name":"Hepatocellular Carcinoma Treatment and Prognosis","value":2e-05,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T12278","display_name":"Vascular Tumors and Angiosarcomas","value":1.96e-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/T11834","display_name":"Liver Diseases and Immunity","value":1.78e-05,"subfield":{"id":"https://openalex.org/subfields/2721","display_name":"Hepatology"},"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/T10569","display_name":"Bariatric Surgery and Outcomes","value":1.74e-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/T12272","display_name":"Cardiovascular Conditions and Treatments","value":1.63e-05,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"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":0.9663138389587402},{"id":"2778019345","wikidata":"https://www.wikidata.org/wiki/Q1148337","display_name":"Hepatocellular carcinoma","score":0.9485226273536682},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.7755604982376099},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.7298252582550049},{"id":"90924648","wikidata":"https://www.wikidata.org/wiki/Q120569","display_name":"Gastroenterology","score":0.6397022008895874}],"counts_by_year":[{"year":1977,"works_count":5,"oa_works_count":2,"cited_by_count":0},{"year":1978,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1979,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1983,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":94},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":104},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":96},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":96},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":88},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":91},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":70},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":70},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":71},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":59},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":56},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":59},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":13}],"display_name_alternatives":["Y Nakajima","Yukio Nakajima"],"block_key":"y nakajima","works_api_url":"https://api.openalex.org/works?filter=author.id:A5103407751","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5103407751","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}
