{"id":"https://openalex.org/A5062345573","orcid":"https://orcid.org/0000-0001-6924-1951","observed_orcids":["https://orcid.org/0000-0001-6924-1951"],"display_name":"Nobuhisa Katayama","raw_author_names":["NOBUHISA KATAYAMA","Nobuhisa KATAYAMA","Nobuhisa Katayama"],"full_name":"Nobuhisa KATAYAMA","works_count":18,"cited_by_count":91,"summary_stats":{"2yr_mean_citedness":2.0,"h_index":6,"i10_index":4},"ids":{"openalex":"https://openalex.org/A5062345573","orcid":"https://orcid.org/0000-0001-6924-1951","observed_orcids":["https://orcid.org/0000-0001-6924-1951"]},"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":[2023,2019]},{"institution":{"id":"https://openalex.org/I4210125718","ror":"https://ror.org/03adh2020","display_name":"Kure Kyosai Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210125718"]},"years":[2025,2024,2023,2022,2019]},{"institution":{"id":"https://openalex.org/I4210131401","ror":"https://ror.org/03dk6an77","display_name":"Hiroshima International University","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210131401"]},"years":[2023,2022]}],"last_known_institutions":[{"id":"https://openalex.org/I4210125718","ror":"https://ror.org/03adh2020","display_name":"Kure Kyosai Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210125718"]}],"topics":[{"id":"https://openalex.org/T10198","display_name":"Heart Failure Treatment and Management","count":10,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T10397","display_name":"Nutrition and Health in Aging","count":10,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T10071","display_name":"Bone health and osteoporosis research","count":5,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports 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/T11011","display_name":"Frailty in Older Adults","count":5,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"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/T11509","display_name":"Hip and Femur Fractures","count":5,"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/T10397","display_name":"Nutrition and Health in Aging","value":4.04e-05,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T11509","display_name":"Hip and Femur Fractures","value":3.84e-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/T10198","display_name":"Heart Failure Treatment and Management","value":3.12e-05,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T12269","display_name":"Effects of Vibration on Health","value":2.97e-05,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports 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/T11011","display_name":"Frailty in Older Adults","value":2.89e-05,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"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":0.9571174383163452},{"id":"2778198053","wikidata":"https://www.wikidata.org/wiki/Q181754","display_name":"Heart failure","score":0.845300018787384},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.5917999744415283},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.5845000147819519},{"id":"1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","score":0.5651958584785461}],"counts_by_year":[{"year":2019,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2022,"works_count":5,"oa_works_count":1,"cited_by_count":10},{"year":2023,"works_count":5,"oa_works_count":3,"cited_by_count":14},{"year":2024,"works_count":3,"oa_works_count":1,"cited_by_count":23},{"year":2025,"works_count":3,"oa_works_count":3,"cited_by_count":22},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":18}],"display_name_alternatives":["NOBUHISA KATAYAMA","Nobuhisa KATAYAMA","Nobuhisa Katayama"],"block_key":"n katayama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5062345573","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5062345573","updated_date":"2026-11-12T13:17:38","created_date":"2019-09-19T00:00:00"}