{"id":"https://openalex.org/A5111805386","orcid":null,"observed_orcids":[],"display_name":"J. C. Greenfield","raw_author_names":["J C Greenfield","J. C. GREENFIELD","J. C. Greenfield","J.C. Greenfield","J.C. Greenfield, Jr"],"full_name":"J.C. Greenfield, Jr","works_count":69,"cited_by_count":2861,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":26,"i10_index":37},"ids":{"openalex":"https://openalex.org/A5111805386","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I130238516","ror":"https://ror.org/017zqws13","display_name":"University of Minnesota","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]},"years":[1977]},{"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":[1989,1985,1984,1980,1976,1975]},{"institution":{"id":"https://openalex.org/I1344073410","ror":"https://ror.org/006w34k90","display_name":"Howard Hughes Medical Institute","country_code":"US","type":"facility","lineage":["https://openalex.org/I1344073410"]},"years":[1985]},{"institution":{"id":"https://openalex.org/I170897317","ror":"https://ror.org/00py81415","display_name":"Duke University","country_code":"US","type":"education","lineage":["https://openalex.org/I170897317"]},"years":[1990,1989,1988,1987,1985,1984,1983,1981,1976,1975]},{"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":[1984,1980]},{"institution":{"id":"https://openalex.org/I4210126298","ror":"https://ror.org/03njmea73","display_name":"Duke Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210126298","https://openalex.org/I4210144876"]},"years":[1999,1998,1995,1994,1993,1991,1990,1989,1988,1987,1985,1984,1983,1982,1981,1975,1973,1969,1968]},{"institution":{"id":"https://openalex.org/I4210139568","ror":"https://ror.org/034adnw64","display_name":"Durham VA Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210119589","https://openalex.org/I4210139568","https://openalex.org/I4210159720"]},"years":[1991,1989,1987,1985,1984,1980,1976,1975,1969,1968]},{"institution":{"id":"https://openalex.org/I4210153043","ror":"https://ror.org/04bct7p84","display_name":"Duke University Hospital","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210126298","https://openalex.org/I4210144876","https://openalex.org/I4210153043"]},"years":[1969]},{"institution":{"id":"https://openalex.org/I867280407","ror":"https://ror.org/05byvp690","display_name":"The University of Texas Southwestern Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I867280407"]},"years":[1993]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10372","display_name":"Cardiac Imaging and Diagnostics","count":32,"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/T11057","display_name":"Cardiac Ischemia and Reperfusion","count":23,"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/T10821","display_name":"Cardiovascular Function and Risk Factors","count":22,"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/T10193","display_name":"Coronary Interventions and Diagnostics","count":20,"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":12,"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"}}],"topic_share":[{"id":"https://openalex.org/T11057","display_name":"Cardiac Ischemia and Reperfusion","value":0.0001127,"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","value":5.62e-05,"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/T10821","display_name":"Cardiovascular Function and Risk Factors","value":5.14e-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/T10193","display_name":"Coronary Interventions and Diagnostics","value":4.83e-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/T11193","display_name":"Adenosine and Purinergic Signaling","value":3.52e-05,"subfield":{"id":"https://openalex.org/subfields/1314","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9744744300842285},{"id":"158846371","wikidata":"https://www.wikidata.org/wiki/Q1642137","display_name":"Blood flow","score":0.8455959558486938},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.8227685689926147},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.800334095954895},{"id":"84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","score":0.5685046911239624}],"counts_by_year":[{"year":1968,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1970,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1973,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1975,"works_count":5,"oa_works_count":2,"cited_by_count":0},{"year":1976,"works_count":5,"oa_works_count":2,"cited_by_count":0},{"year":1977,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1980,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1982,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":1983,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1984,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1986,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1987,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1988,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"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":2012,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":51},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":45},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":30},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":30},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":9}],"display_name_alternatives":["J C Greenfield","J. C. GREENFIELD","J. C. Greenfield","J.C. Greenfield","J.C. Greenfield, Jr"],"block_key":"j greenfield","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111805386","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}