{"id":"https://openalex.org/A5045966907","orcid":null,"observed_orcids":[],"display_name":"Dirk Ahrens","raw_author_names":["Ahrens, D","Ahrens, Dirk","D Ahrens","D. Ahrens","Dirk Ahrens"],"full_name":"Dirk Ahrens","works_count":11,"cited_by_count":246,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":4,"i10_index":4},"ids":{"openalex":"https://openalex.org/A5045966907","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I20121455","ror":"https://ror.org/02hpadn98","display_name":"Bielefeld University","country_code":"DE","type":"education","lineage":["https://openalex.org/I20121455"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I2799318839","ror":"https://ror.org/025vngs54","display_name":"Universit\u00e4tsmedizin Greifswald","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I2799318839"]},"years":[2012]},{"institution":{"id":"https://openalex.org/I4210116730","ror":"https://ror.org/021ft0n22","display_name":"Universit\u00e4tsmedizin G\u00f6ttingen","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210116730"]},"years":[2012,2007]},{"institution":{"id":"https://openalex.org/I74656192","ror":"https://ror.org/01y9bpm73","display_name":"University of G\u00f6ttingen","country_code":"DE","type":"education","lineage":["https://openalex.org/I74656192"]},"years":[2013,2010]}],"last_known_institutions":[{"id":"https://openalex.org/I74656192","ror":"https://ror.org/01y9bpm73","display_name":"University of G\u00f6ttingen","country_code":"DE","type":"education","lineage":["https://openalex.org/I74656192"]}],"topics":[{"id":"https://openalex.org/T10496","display_name":"Pharmaceutical Practices and Patient Outcomes","count":5,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"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/T13555","display_name":"Healthcare cost, quality, practices","count":5,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"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/T10671","display_name":"Gastroesophageal reflux and treatments","count":4,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T10084","display_name":"Musculoskeletal pain and rehabilitation","count":2,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"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/T10198","display_name":"Heart Failure Treatment and Management","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/T13555","display_name":"Healthcare cost, quality, practices","value":4.88e-05,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"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/T10671","display_name":"Gastroesophageal reflux and treatments","value":2.26e-05,"subfield":{"id":"https://openalex.org/subfields/2715","display_name":"Gastroenterology"},"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/T12246","display_name":"Chronic Disease Management Strategies","value":2.09e-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/T10496","display_name":"Pharmaceutical Practices and Patient Outcomes","value":1.83e-05,"subfield":{"id":"https://openalex.org/subfields/2717","display_name":"Geriatrics and Gerontology"},"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/T12715","display_name":"Pregnancy-related medical research","value":1.61e-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"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9502790570259094},{"id":"159110408","wikidata":"https://www.wikidata.org/wiki/Q121176","display_name":"Nursing","score":0.35421186685562134},{"id":"15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","score":0.3242679834365845},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.26144397258758545},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.1906999945640564}],"counts_by_year":[{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":11},{"year":2013,"works_count":1,"oa_works_count":1,"cited_by_count":13},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":19},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":26},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":24},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":21},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":16},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":20},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":6}],"display_name_alternatives":["Ahrens, D","Ahrens, Dirk","D Ahrens","D. Ahrens","Dirk Ahrens"],"block_key":"d ahrens","works_api_url":"https://api.openalex.org/works?filter=author.id:A5045966907","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}