{"id":"https://openalex.org/A5089376239","orcid":null,"observed_orcids":[],"display_name":"Michael D. Butler","raw_author_names":["M Butler","M D Butler","Michael Butler","Michael D Butler","Michael D. Butler"],"full_name":"Michael D. Butler","works_count":19,"cited_by_count":296,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":10,"i10_index":10},"ids":{"openalex":"https://openalex.org/A5089376239","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I126307644","ror":"https://ror.org/036jqmy94","display_name":"University of Iowa","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I1282516798","ror":"https://ror.org/04v8djg66","display_name":"Atrium Health Wake Forest Baptist","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1282516798","https://openalex.org/I47251452"]},"years":[2013]},{"institution":{"id":"https://openalex.org/I1283280774","ror":"https://ror.org/04b6nzv94","display_name":"Brigham and Women's Hospital","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I121934306","https://openalex.org/I1283280774","https://openalex.org/I48633490"]},"years":[1989,1988,1987]},{"institution":{"id":"https://openalex.org/I1293487830","ror":"https://ror.org/03j9npf54","display_name":"Geisinger Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1293487830","https://openalex.org/I54713919"]},"years":[1995]},{"institution":{"id":"https://openalex.org/I1308699925","ror":"https://ror.org/038fqcc39","display_name":"UPMC Hamot","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1308699925","https://openalex.org/I4210098814","https://openalex.org/I4210134769"]},"years":[2007,2004]},{"institution":{"id":"https://openalex.org/I1322918889","ror":"https://ror.org/05rsv9s98","display_name":"United States Department of Veterans Affairs","country_code":"US","type":"government","lineage":["https://openalex.org/I1322918889"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I1343052199","ror":"https://ror.org/00t60zh31","display_name":"Kaiser Permanente","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I1343052199"]},"years":[1989]},{"institution":{"id":"https://openalex.org/I136199984","ror":"https://ror.org/03vek6s52","display_name":"Harvard University","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]},"years":[1988,1987]},{"institution":{"id":"https://openalex.org/I2799765794","ror":"https://ror.org/00wn7d965","display_name":"University of Virginia Health System","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799765794"]},"years":[1997]},{"institution":{"id":"https://openalex.org/I2799886695","ror":"https://ror.org/05eq41471","display_name":"Veterans Health Administration","country_code":"US","type":"government","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695"]},"years":[1989,1987]},{"institution":{"id":"https://openalex.org/I2800704349","ror":"https://ror.org/049wjac82","display_name":"Cooper University Hospital","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2800704349","https://openalex.org/I4210157085"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I2802216851","ror":"https://ror.org/04g2swc55","display_name":"University of Iowa Hospitals and Clinics","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I126307644","https://openalex.org/I2802216851","https://openalex.org/I4210142782"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I4210134211","ror":"https://ror.org/046kb4y45","display_name":"University of Virginia Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I2799765794","https://openalex.org/I4210134211"]},"years":[1997]},{"institution":{"id":"https://openalex.org/I4210135841","ror":"https://ror.org/03r9k1585","display_name":"Iowa City VA Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210132647","https://openalex.org/I4210135841","https://openalex.org/I4210159720"]},"years":[1983]},{"institution":{"id":"https://openalex.org/I51556381","ror":"https://ror.org/0153tk833","display_name":"University of Virginia","country_code":"US","type":"education","lineage":["https://openalex.org/I51556381"]},"years":[1997]}],"last_known_institutions":[{"id":"https://openalex.org/I1282516798","ror":"https://ror.org/04v8djg66","display_name":"Atrium Health Wake Forest Baptist","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1282516798","https://openalex.org/I47251452"]}],"topics":[{"id":"https://openalex.org/T11055","display_name":"Cardiac and Coronary Surgery Techniques","count":6,"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/T11057","display_name":"Cardiac Ischemia and Reperfusion","count":6,"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/T10292","display_name":"Acute Myocardial Infarction Research","count":4,"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/T10372","display_name":"Cardiac Imaging and Diagnostics","count":4,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T11189","display_name":"Transplantation: Methods and Outcomes","count":3,"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/T13657","display_name":"Aortic Thrombus and Embolism","value":5.69e-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/T11057","display_name":"Cardiac Ischemia and Reperfusion","value":2.94e-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/T11055","display_name":"Cardiac and Coronary Surgery Techniques","value":2.12e-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/T12018","display_name":"Coronary Artery Anomalies","value":1.81e-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/T12291","display_name":"Pericarditis and Cardiac Tamponade","value":1.76e-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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.988757848739624},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.7639963626861572},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.752959132194519},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.46653419733047485},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.43567174673080444}],"counts_by_year":[{"year":1978,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1988,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2004,"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":2009,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":6},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"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":2},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["M Butler","M D Butler","Michael Butler","Michael D Butler","Michael D. Butler"],"block_key":"m butler","works_api_url":"https://api.openalex.org/works?filter=author.id:A5089376239","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}
