{"id":"https://openalex.org/A5111456582","orcid":null,"observed_orcids":[],"display_name":"Hendrik C. Barnard","raw_author_names":["Barnard Hc","H C Barnard","H. C. Barnard","H.C Barnard","H.C. Barnard","HC Barnard","Hendrik C. Barnard"],"full_name":"Hendrik C. Barnard","works_count":37,"cited_by_count":767,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":12,"i10_index":14},"ids":{"openalex":"https://openalex.org/A5111456582","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I10947320","ror":"https://ror.org/05q60vz69","display_name":"South African Medical Research Council","country_code":"ZA","type":"other","lineage":["https://openalex.org/I10947320"]},"years":[1992]},{"institution":{"id":"https://openalex.org/I26999989","ror":"https://ror.org/009xwd568","display_name":"University of the Free State","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26999989"]},"years":[2017,2009,2000,1999,1998,1994,1992,1990,1988,1987,1982]},{"institution":{"id":"https://openalex.org/I27765905","ror":"https://ror.org/010f1sq29","display_name":"North-West University","country_code":"ZA","type":"education","lineage":["https://openalex.org/I27765905"]},"years":[1992]},{"institution":{"id":"https://openalex.org/I2802393258","ror":"https://ror.org/003hsr719","display_name":"Sefako Makgatho Health Sciences University","country_code":"ZA","type":"education","lineage":["https://openalex.org/I2802393258"]},"years":[2009]}],"last_known_institutions":[{"id":"https://openalex.org/I26999989","ror":"https://ror.org/009xwd568","display_name":"University of the Free State","country_code":"ZA","type":"education","lineage":["https://openalex.org/I26999989"]}],"topics":[{"id":"https://openalex.org/T10499","display_name":"Folate and B Vitamins Research","count":8,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"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/T10027","display_name":"Diabetes, Cardiovascular Risks, and Lipoproteins","count":7,"subfield":{"id":"https://openalex.org/subfields/2712","display_name":"Endocrinology, Diabetes and Metabolism"},"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/T10394","display_name":"Lipoproteins and Cardiovascular Health","count":7,"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":4,"subfield":{"id":"https://openalex.org/subfields/2734","display_name":"Pathology and Forensic 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/T11618","display_name":"Cholesterol and Lipid Metabolism","count":4,"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/T12441","display_name":"Porphyrin Metabolism and Disorders","value":5.1e-05,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"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"}},{"id":"https://openalex.org/T10499","display_name":"Folate and B Vitamins Research","value":4.9e-05,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"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/T12494","display_name":"Alcoholism and Thiamine Deficiency","value":4.33e-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"}},{"id":"https://openalex.org/T12745","display_name":"Dietary Effects on Health","value":3.43e-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/T12975","display_name":"Paraoxonase enzyme and polymorphisms","value":2.96e-05,"subfield":{"id":"https://openalex.org/subfields/1308","display_name":"Clinical Biochemistry"},"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":0.9588077068328857},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.8871417045593262},{"id":"134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","score":0.8632169365882874},{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.8382405638694763},{"id":"55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","score":0.5400396585464478}],"counts_by_year":[{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":7,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":1,"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":19},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":19},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":23},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2017,"works_count":2,"oa_works_count":0,"cited_by_count":17},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":4}],"display_name_alternatives":["Barnard Hc","H C Barnard","H. C. Barnard","H.C Barnard","H.C. Barnard","HC Barnard","Hendrik C. Barnard"],"block_key":"h barnard","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111456582","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}