{"id":"https://openalex.org/A5016745160","orcid":"https://orcid.org/0000-0002-5582-9284","observed_orcids":["https://orcid.org/0000-0002-5582-9284"],"display_name":"Masatoshi Sumi","raw_author_names":["M Sumi","M. Sumi","MASATOSHI SUMI","Masatoshi Sumi"],"full_name":"Masatoshi Sumi","works_count":65,"cited_by_count":2100,"summary_stats":{"2yr_mean_citedness":2.5,"h_index":29,"i10_index":38},"ids":{"openalex":"https://openalex.org/A5016745160","orcid":"https://orcid.org/0000-0002-5582-9284","observed_orcids":["https://orcid.org/0000-0002-5582-9284"]},"affiliations":[{"institution":{"id":"https://openalex.org/I1333985979","ror":"https://ror.org/03mwa7s65","display_name":"Ministry of Health Labour and Welfare","country_code":"JP","type":"government","lineage":["https://openalex.org/I1333985979"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I4210087340","ror":"https://ror.org/00161f548","display_name":"Kobe Medical Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210087340","https://openalex.org/I4210137409"]},"years":[2008,2005,1990]},{"institution":{"id":"https://openalex.org/I4210087631","ror":"https://ror.org/003z23p70","display_name":"Research Institute for Brain and Blood Vessels Akita","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210087631","https://openalex.org/I4405283770"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I4210117423","ror":"https://ror.org/02byvdx91","display_name":"Kobe Rosai Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210117423"]},"years":[2024,2021,2018,2017,2016,2015,2014,2013,2012,2011,2010,2009,2008,2007,2006]},{"institution":{"id":"https://openalex.org/I4210137409","ror":"https://ror.org/03ntccx93","display_name":"National Hospital Organization","country_code":"JP","type":"government","lineage":["https://openalex.org/I4210137409"]},"years":[2008]},{"institution":{"id":"https://openalex.org/I65837984","ror":"https://ror.org/03tgsfw79","display_name":"Kobe University","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]},"years":[2014,1999]}],"last_known_institutions":[{"id":"https://openalex.org/I4210117423","ror":"https://ror.org/02byvdx91","display_name":"Kobe Rosai Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210117423"]}],"topics":[{"id":"https://openalex.org/T11518","display_name":"Cervical and Thoracic Myelopathy","count":45,"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/T10776","display_name":"Spinal Fractures and Fixation Techniques","count":23,"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/T10238","display_name":"Spine and Intervertebral Disc Pathology","count":19,"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/T10084","display_name":"Musculoskeletal pain and rehabilitation","count":17,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11030","display_name":"Scoliosis diagnosis and treatment","count":12,"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/T11518","display_name":"Cervical and Thoracic Myelopathy","value":0.0002277,"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/T10776","display_name":"Spinal Fractures and Fixation Techniques","value":9.01e-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/T11030","display_name":"Scoliosis diagnosis and treatment","value":7.69e-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/T10238","display_name":"Spine and Intervertebral Disc Pathology","value":5.8e-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/T11833","display_name":"Spinal Dysraphism and Malformations","value":4.6e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"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":0.9916762709617615},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.7769042253494263},{"id":"2780775167","wikidata":"https://www.wikidata.org/wiki/Q9606","display_name":"Spinal cord","score":0.6721543073654175},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.6206793189048767},{"id":"118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","score":0.0}],"counts_by_year":[{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":8,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":3,"oa_works_count":1,"cited_by_count":46},{"year":2013,"works_count":6,"oa_works_count":3,"cited_by_count":83},{"year":2014,"works_count":6,"oa_works_count":3,"cited_by_count":79},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":101},{"year":2016,"works_count":6,"oa_works_count":1,"cited_by_count":132},{"year":2017,"works_count":2,"oa_works_count":2,"cited_by_count":147},{"year":2018,"works_count":3,"oa_works_count":2,"cited_by_count":169},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":168},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":163},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":163},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":122},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":138},{"year":2024,"works_count":2,"oa_works_count":2,"cited_by_count":105},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":109},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":90}],"display_name_alternatives":["M Sumi","M. Sumi","MASATOSHI SUMI","Masatoshi Sumi"],"block_key":"m sumi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5016745160","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5016745160","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}