{"id":"https://openalex.org/A5038995335","orcid":null,"observed_orcids":[],"display_name":"A. K. J. Koumans","raw_author_names":["A K J KOUMANS","A K KOUMANS","A. K. J. KOUMANS","A. K. J. Koumans","A.K.J. Koumans"],"full_name":"A. K. J. Koumans","works_count":16,"cited_by_count":58,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":4,"i10_index":2},"ids":{"openalex":"https://openalex.org/A5038995335","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I193662353","ror":"https://ror.org/04pp8hn57","display_name":"Utrecht University","country_code":"NL","type":"education","lineage":["https://openalex.org/I193662353"]},"years":[1938]},{"institution":{"id":"https://openalex.org/I98358874","ror":"https://ror.org/02e2c7k09","display_name":"Delft University of Technology","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]},"years":[1985]}],"last_known_institutions":[{"id":"https://openalex.org/I98358874","ror":"https://ror.org/02e2c7k09","display_name":"Delft University of Technology","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"topics":[{"id":"https://openalex.org/T10217","display_name":"Cardiac electrophysiology and arrhythmias","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/T10105","display_name":"Osteoarthritis Treatment and Mechanisms","count":2,"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/T10292","display_name":"Acute Myocardial Infarction Research","count":2,"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","count":2,"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/T11217","display_name":"Cardiac Arrhythmias and Treatments","count":2,"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/T14057","display_name":"Hypertrophic osteoarthropathy and related conditions","value":0.0001004,"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/T12463","display_name":"Amoebic Infections and Treatments","value":2.27e-05,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"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/T13095","display_name":"Plant-based Medicinal Research","value":1.91e-05,"subfield":{"id":"https://openalex.org/subfields/3004","display_name":"Pharmacology"},"field":{"id":"https://openalex.org/fields/30","display_name":"Pharmacology, Toxicology and Pharmaceutics"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T14199","display_name":"Historical and Scientific Studies","value":1.57e-05,"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/T12924","display_name":"Dermatological and Skeletal Disorders","value":1.3e-05,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"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":0.9648463726043701},{"id":"179437574","wikidata":"https://www.wikidata.org/wiki/Q15089798","display_name":"Ligation","score":0.9044498801231384},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.7469972968101501},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.7137483358383179},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.3068801164627075}],"counts_by_year":[{"year":1925,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1926,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1930,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1934,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1936,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1938,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1950,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1953,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1954,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1955,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1958,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["A K J KOUMANS","A K KOUMANS","A. K. J. KOUMANS","A. K. J. Koumans","A.K.J. Koumans"],"block_key":"a koumans","works_api_url":"https://api.openalex.org/works?filter=author.id:A5038995335","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}