{"id":"https://openalex.org/A5111799548","orcid":null,"observed_orcids":[],"display_name":"Jan K. Siemsen","raw_author_names":["J K SIEMSEN","J K Siemsen","J SIEMSEN","J Siemsen","J. K. Siemsen","J.K. Siemsen","JAN K. SIEMSEN","JK Siemsen","Jan K. Siemsen"],"full_name":"JAN K. SIEMSEN","works_count":59,"cited_by_count":885,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":17,"i10_index":25},"ids":{"openalex":"https://openalex.org/A5111799548","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1174212","ror":"https://ror.org/03taz7m60","display_name":"University of Southern California","country_code":"US","type":"education","lineage":["https://openalex.org/I1174212"]},"years":[1982,1978,1976,1975,1973,1972,1971,1969]},{"institution":{"id":"https://openalex.org/I1282927834","ror":"https://ror.org/02pammg90","display_name":"Cedars-Sinai Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1282927834"]},"years":[1978]},{"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":[1962]},{"institution":{"id":"https://openalex.org/I1341412227","ror":"https://ror.org/05hh8d621","display_name":"IBM (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I1341412227"]},"years":[1973,1972,1971]},{"institution":{"id":"https://openalex.org/I1342924430","ror":"https://ror.org/04xzj3x20","display_name":"LAC+USC Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1328359107","https://openalex.org/I1342924430"]},"years":[1976,1975,1973,1972,1967]},{"institution":{"id":"https://openalex.org/I200763008","ror":"https://ror.org/033eqas34","display_name":"Justus-Liebig-Universit\u00e4t Gie\u00dfen","country_code":"DE","type":"education","lineage":["https://openalex.org/I200763008"]},"years":[1973]},{"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":[1962]},{"institution":{"id":"https://openalex.org/I4210087032","ror":"https://ror.org/001s4dh65","display_name":"Cambridge Scientific (United States)","country_code":"US","type":"company","lineage":["https://openalex.org/I4210087032"]},"years":[1973,1972]},{"institution":{"id":"https://openalex.org/I4210096972","ror":"https://ror.org/00spys463","display_name":"Los Angeles Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1343052199","https://openalex.org/I4210096972"]},"years":[1975]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","count":31,"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/T11395","display_name":"Radiopharmaceutical Chemistry and Applications","count":27,"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/T11894","display_name":"Radiology practices and education","count":11,"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/T10129","display_name":"Glioma Diagnosis and Treatment","count":4,"subfield":{"id":"https://openalex.org/subfields/2716","display_name":"Genetics"},"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/T13759","display_name":"Medical Imaging and Pathology Studies","count":4,"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"}}],"topic_share":[{"id":"https://openalex.org/T11395","display_name":"Radiopharmaceutical Chemistry and Applications","value":9.89e-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/T10522","display_name":"Medical Imaging Techniques and Applications","value":6.26e-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/T11894","display_name":"Radiology practices and education","value":4.95e-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/T14514","display_name":"Medical Research and Practices","value":3.2e-05,"subfield":{"id":"https://openalex.org/subfields/3608","display_name":"Medical Terminology"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13328","display_name":"Osteomyelitis and Bone Disorders Research","value":2.93e-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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9862303733825684},{"id":"2989005","wikidata":"https://www.wikidata.org/wiki/Q214963","display_name":"Nuclear medicine","score":0.719228982925415},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.6872137784957886},{"id":"142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","score":0.538188099861145},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.42643892765045166}],"counts_by_year":[{"year":1952,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1957,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1959,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1960,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1962,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1963,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1965,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1967,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1968,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1973,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1975,"works_count":10,"oa_works_count":2,"cited_by_count":0},{"year":1976,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1977,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1978,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":15},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2016,"works_count":1,"oa_works_count":0,"cited_by_count":13},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2019,"works_count":1,"oa_works_count":0,"cited_by_count":6},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"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":2}],"display_name_alternatives":["J K SIEMSEN","J K Siemsen","J SIEMSEN","J Siemsen","J. K. Siemsen","J.K. Siemsen","JAN K. SIEMSEN","JK Siemsen","Jan K. Siemsen"],"block_key":"j siemsen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111799548","updated_date":"2026-10-28T12:34:19","created_date":"2016-06-24T00:00:00"}
