{"id":"https://openalex.org/A5081920332","orcid":"https://orcid.org/0000-0002-5484-6234","observed_orcids":["https://orcid.org/0000-0002-5484-6234"],"display_name":"Oliver Kalpak","raw_author_names":["Kalpak, O.","Kalpak, Oliver","O Kalpak","O. Kalpak","Oliver Kalpak"],"full_name":"Oliver Kalpak","works_count":67,"cited_by_count":1110,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":17,"i10_index":26},"ids":{"openalex":"https://openalex.org/A5081920332","orcid":"https://orcid.org/0000-0002-5484-6234","observed_orcids":["https://orcid.org/0000-0002-5484-6234"]},"affiliations":[{"institution":{"id":"https://openalex.org/I10091056","ror":"https://ror.org/02hwp6a56","display_name":"Kanazawa University","country_code":"JP","type":"education","lineage":["https://openalex.org/I10091056"]},"years":[2016]},{"institution":{"id":"https://openalex.org/I130828816","ror":"https://ror.org/024mrxd33","display_name":"University of Leeds","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I2802928900","ror":"https://ror.org/03t4gr691","display_name":"Amsterdam UMC Location University of Amsterdam","country_code":"NL","type":"healthcare","lineage":["https://openalex.org/I2802928900","https://openalex.org/I4210151833"]},"years":[2016]},{"institution":{"id":"https://openalex.org/I3018718406","ror":"https://ror.org/02ppyfa04","display_name":"Centre Hospitalier Universitaire de Lille","country_code":"FR","type":"healthcare","lineage":["https://openalex.org/I3018718406"]},"years":[2021]},{"institution":{"id":"https://openalex.org/I76245029","ror":"https://ror.org/02wk2vx54","display_name":"Ss. Cyril and Methodius University in Skopje","country_code":"MK","type":"education","lineage":["https://openalex.org/I76245029"]},"years":[2026,2025,2024,2023,2022,2021,2019,2018,2017,2016,2015,2014,2013]},{"institution":{"id":"https://openalex.org/I9360294","ror":"https://ror.org/01111rn36","display_name":"University of Bologna","country_code":"IT","type":"education","lineage":["https://openalex.org/I9360294"]},"years":[2018,2015]}],"last_known_institutions":[{"id":"https://openalex.org/I76245029","ror":"https://ror.org/02wk2vx54","display_name":"Ss. Cyril and Methodius University in Skopje","country_code":"MK","type":"education","lineage":["https://openalex.org/I76245029"]}],"topics":[{"id":"https://openalex.org/T10292","display_name":"Acute Myocardial Infarction Research","count":50,"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":46,"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/T11064","display_name":"Antiplatelet Therapy and Cardiovascular Diseases","count":18,"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/T11554","display_name":"Vascular Procedures and Complications","count":17,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/T10227","display_name":"Acute Ischemic Stroke Management","count":6,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"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/T11064","display_name":"Antiplatelet Therapy and Cardiovascular Diseases","value":0.0001212,"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","value":0.0001098,"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":0.0001064,"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/T13252","display_name":"Sex and Gender in Healthcare","value":8.66e-05,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"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/T11554","display_name":"Vascular Procedures and Complications","value":7.91e-05,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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":0.9907967448234558},{"id":"500558357","wikidata":"https://www.wikidata.org/wiki/Q12152","display_name":"Myocardial infarction","score":0.8641294240951538},{"id":"164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","score":0.8622999787330627},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.8409000039100647},{"id":"2777698277","wikidata":"https://www.wikidata.org/wiki/Q266018","display_name":"Acute coronary syndrome","score":0.8354315161705017}],"counts_by_year":[{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":2},{"year":2014,"works_count":3,"oa_works_count":1,"cited_by_count":1},{"year":2015,"works_count":4,"oa_works_count":3,"cited_by_count":8},{"year":2016,"works_count":13,"oa_works_count":4,"cited_by_count":30},{"year":2017,"works_count":10,"oa_works_count":6,"cited_by_count":47},{"year":2018,"works_count":9,"oa_works_count":5,"cited_by_count":86},{"year":2019,"works_count":4,"oa_works_count":1,"cited_by_count":118},{"year":2020,"works_count":3,"oa_works_count":2,"cited_by_count":123},{"year":2021,"works_count":3,"oa_works_count":3,"cited_by_count":129},{"year":2022,"works_count":3,"oa_works_count":3,"cited_by_count":110},{"year":2023,"works_count":6,"oa_works_count":5,"cited_by_count":131},{"year":2024,"works_count":2,"oa_works_count":2,"cited_by_count":136},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":100},{"year":2026,"works_count":1,"oa_works_count":0,"cited_by_count":45}],"display_name_alternatives":["Kalpak, O.","Kalpak, Oliver","O Kalpak","O. Kalpak","Oliver Kalpak"],"block_key":"o kalpak","works_api_url":"https://api.openalex.org/works?filter=author.id:A5081920332","updated_date":"2026-10-31T12:29:50","created_date":"2016-06-24T00:00:00"}