{"id":"https://openalex.org/A5044713396","orcid":"https://orcid.org/0000-0003-4327-6798","observed_orcids":["https://orcid.org/0000-0003-4327-6798"],"display_name":"Gregory Felzien","raw_author_names":["Felzien, Gregory S","Gregory Felzien","Gregory S Felzien","Gregory S. Felzien"],"full_name":"Felzien, Gregory S.","works_count":15,"cited_by_count":25,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":2,"i10_index":1},"ids":{"openalex":"https://openalex.org/A5044713396","orcid":"https://orcid.org/0000-0003-4327-6798","observed_orcids":["https://orcid.org/0000-0003-4327-6798"]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210120204","ror":"https://ror.org/02mhr7958","display_name":"Positive Impact","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210120204"]},"years":[2025,2023]},{"institution":{"id":"https://openalex.org/I4210140731","ror":"https://ror.org/04wcf8366","display_name":"Georgia Department of Public Health","country_code":"US","type":"government","lineage":["https://openalex.org/I4210140731"]},"years":[2022,2021,2019,2017]}],"last_known_institutions":[{"id":"https://openalex.org/I4210120204","ror":"https://ror.org/02mhr7958","display_name":"Positive Impact","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210120204"]}],"topics":[{"id":"https://openalex.org/T10082","display_name":"HIV/AIDS Research and Interventions","count":9,"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/T11860","display_name":"HIV, Drug Use, Sexual Risk","count":4,"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"}},{"id":"https://openalex.org/T10112","display_name":"HIV Research and Treatment","count":2,"subfield":{"id":"https://openalex.org/subfields/2406","display_name":"Virology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10199","display_name":"Wildlife Ecology and Conservation","count":2,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10368","display_name":"Dental Health and Care Utilization","count":2,"subfield":{"id":"https://openalex.org/subfields/3500","display_name":"General Dentistry"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13847","display_name":"Literature Analysis and Criticism","value":5.61e-05,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child 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/T11987","display_name":"COVID-19 Impact on Reproduction","value":3.05e-05,"subfield":{"id":"https://openalex.org/subfields/2729","display_name":"Obstetrics and Gynecology"},"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/T11860","display_name":"HIV, Drug Use, Sexual Risk","value":1.93e-05,"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"}},{"id":"https://openalex.org/T10082","display_name":"HIV/AIDS Research and Interventions","value":1.8e-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/T14334","display_name":"HIV/AIDS Impact and Responses","value":1.39e-05,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.8479241132736206},{"id":"3013748606","wikidata":"https://www.wikidata.org/wiki/Q15787","display_name":"Human immunodeficiency virus (HIV)","score":0.7900508046150208},{"id":"512399662","wikidata":"https://www.wikidata.org/wiki/Q3505712","display_name":"Family medicine","score":0.6219730973243713},{"id":"160735492","wikidata":"https://www.wikidata.org/wiki/Q31207","display_name":"Health care","score":0.5129968523979187},{"id":"159110408","wikidata":"https://www.wikidata.org/wiki/Q121176","display_name":"Nursing","score":0.411493718624115}],"counts_by_year":[{"year":1996,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2015,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2017,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":1},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":4},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":3},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":6},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":2}],"display_name_alternatives":["Felzien, Gregory S","Gregory Felzien","Gregory S Felzien","Gregory S. Felzien"],"block_key":"g felzien","works_api_url":"https://api.openalex.org/works?filter=author.id:A5044713396","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5044713396","updated_date":"2026-11-12T13:17:38","created_date":"2017-07-21T00:00:00"}