{"id":"https://openalex.org/A5003789179","orcid":null,"observed_orcids":[],"display_name":"Atsushi Toyonaga","raw_author_names":["A TOYONAGA","A Toyonaga","A. Toyonaga","ATSUSHI TOYONAGA","Atsushi TOYONAGA","Atsushi Toyonaga","Atsushi Toyonaga,","Toyonaga Atsushi","Toyonaga, A."],"full_name":"Atsushi Toyonaga","works_count":244,"cited_by_count":5125,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":35,"i10_index":93},"ids":{"openalex":"https://openalex.org/A5003789179","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":[2019,2009,2007,2006,2005,2004,2003,2002,2001,2000,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1983,1981,1979,1978]},{"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":[1993]},{"institution":{"id":"https://openalex.org/I205349734","ror":"https://ror.org/02e16g702","display_name":"Hokkaido University","country_code":"JP","type":"education","lineage":["https://openalex.org/I205349734"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I2802592688","ror":"https://ror.org/0586k5242","display_name":"Kirin (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I2802592688"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I4210096146","ror":"https://ror.org/00vjxjf30","display_name":"Kurume University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210096146"]},"years":[2019,2009,2003,1998,1997,1993,1991,1989,1987,1986,1985,1979,1978]},{"institution":{"id":"https://openalex.org/I4210097362","ror":"https://ror.org/00srtbf93","display_name":"Kurume University Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210097362"]},"years":[2009,2007,2004,1997,1996,1995,1992,1990,1989,1988,1987,1985]},{"institution":{"id":"https://openalex.org/I4210139066","ror":"https://ror.org/03jv9sa78","display_name":"Japanese Society of Hypertension","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I4210139066"]},"years":[2010]},{"institution":{"id":"https://openalex.org/I4210149441","ror":"https://ror.org/05rs18f71","display_name":"Toagosei (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210149441"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I4405257236","ror":"https://ror.org/05227xs87","display_name":"Tagawa Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405257236"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I4405272671","ror":"https://ror.org/04h6fcw63","display_name":"Kirin Holdings Company, Limited (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405272671"]},"years":[2003]}],"last_known_institutions":[{"id":"https://openalex.org/I105296287","ror":"https://ror.org/057xtrt18","display_name":"Kurume University","country_code":"JP","type":"education","lineage":["https://openalex.org/I105296287"]},{"id":"https://openalex.org/I4210096146","ror":"https://ror.org/00vjxjf30","display_name":"Kurume University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210096146"]}],"topics":[{"id":"https://openalex.org/T10337","display_name":"Liver Disease and Transplantation","count":107,"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/T11378","display_name":"Gastrointestinal Bleeding Diagnosis and Treatment","count":72,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T11625","display_name":"Abdominal vascular conditions and treatments","count":66,"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/T10134","display_name":"Inflammatory Bowel Disease","count":47,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T10619","display_name":"Esophageal Cancer Research and Treatment","count":30,"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"}}],"topic_share":[{"id":"https://openalex.org/T10337","display_name":"Liver Disease and Transplantation","value":0.0003308,"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/T11625","display_name":"Abdominal vascular conditions and treatments","value":0.0002846,"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/T11378","display_name":"Gastrointestinal Bleeding Diagnosis and Treatment","value":0.0001989,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T10134","display_name":"Inflammatory Bowel Disease","value":0.0001419,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T12328","display_name":"Autoimmune and Inflammatory Disorders","value":0.0001333,"subfield":{"id":"https://openalex.org/subfields/2708","display_name":"Dermatology"},"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":0.9834225177764893},{"id":"2778808290","wikidata":"https://www.wikidata.org/wiki/Q124604","display_name":"Portal hypertension","score":0.9408535361289978},{"id":"90924648","wikidata":"https://www.wikidata.org/wiki/Q120569","display_name":"Gastroenterology","score":0.8782684803009033},{"id":"2777214474","wikidata":"https://www.wikidata.org/wiki/Q147778","display_name":"Cirrhosis","score":0.8385082483291626},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.8109560012817383}],"counts_by_year":[{"year":1978,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":1979,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1985,"works_count":8,"oa_works_count":5,"cited_by_count":0},{"year":1986,"works_count":8,"oa_works_count":2,"cited_by_count":0},{"year":1987,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":7,"oa_works_count":2,"cited_by_count":0},{"year":1989,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":8,"oa_works_count":2,"cited_by_count":0},{"year":1992,"works_count":10,"oa_works_count":1,"cited_by_count":0},{"year":1993,"works_count":12,"oa_works_count":3,"cited_by_count":0},{"year":1994,"works_count":12,"oa_works_count":3,"cited_by_count":0},{"year":1995,"works_count":13,"oa_works_count":6,"cited_by_count":0},{"year":1996,"works_count":11,"oa_works_count":2,"cited_by_count":0},{"year":1997,"works_count":16,"oa_works_count":2,"cited_by_count":0},{"year":1998,"works_count":21,"oa_works_count":4,"cited_by_count":0},{"year":1999,"works_count":9,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":12,"oa_works_count":5,"cited_by_count":0},{"year":2001,"works_count":10,"oa_works_count":3,"cited_by_count":0},{"year":2002,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":7,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2005,"works_count":9,"oa_works_count":5,"cited_by_count":0},{"year":2006,"works_count":8,"oa_works_count":3,"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":0,"cited_by_count":0},{"year":2009,"works_count":7,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":211},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":205},{"year":2014,"works_count":3,"oa_works_count":3,"cited_by_count":214},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":200},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":185},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":162},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":150},{"year":2019,"works_count":2,"oa_works_count":0,"cited_by_count":161},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":168},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":183},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":169},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":137},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":119},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":96},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":74}],"display_name_alternatives":["A TOYONAGA","A Toyonaga","A. Toyonaga","ATSUSHI TOYONAGA","Atsushi TOYONAGA","Atsushi Toyonaga","Atsushi Toyonaga,","Toyonaga Atsushi","Toyonaga, A."],"block_key":"a toyonaga","works_api_url":"https://api.openalex.org/works?filter=author.id:A5003789179","awards_count":2,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5003789179","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}
