{"id":"https://openalex.org/A5110072498","orcid":null,"observed_orcids":[],"display_name":"K. J. Zahn","raw_author_names":["K J Zahn","K. J. Zahn","K.J. Zahn"],"full_name":"K. J. Zahn","works_count":7,"cited_by_count":191,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":4,"i10_index":4},"ids":{"openalex":"https://openalex.org/A5110072498","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210120534","ror":"https://ror.org/02hjc7j46","display_name":"Rotterdam Eye Hospital","country_code":"NL","type":"healthcare","lineage":["https://openalex.org/I4210120534"]},"years":[1981,1980,1977]},{"institution":{"id":"https://openalex.org/I913958620","ror":"https://ror.org/057w15z03","display_name":"Erasmus University Rotterdam","country_code":"NL","type":"education","lineage":["https://openalex.org/I913958620"]},"years":[1981,1980,1977,1973]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10170","display_name":"Retinal Diseases and Treatments","count":6,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T10387","display_name":"Fatty Acid Research and Health","count":3,"subfield":{"id":"https://openalex.org/subfields/2916","display_name":"Nutrition and Dietetics"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11438","display_name":"Retinal Imaging and Analysis","count":3,"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/T12533","display_name":"Aldose Reductase and Taurine","count":3,"subfield":{"id":"https://openalex.org/subfields/1307","display_name":"Cell Biology"},"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"}},{"id":"https://openalex.org/T11037","display_name":"Fungal Infections and Studies","count":1,"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"}}],"topic_share":[{"id":"https://openalex.org/T12533","display_name":"Aldose Reductase and Taurine","value":7.87e-05,"subfield":{"id":"https://openalex.org/subfields/1307","display_name":"Cell Biology"},"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"}},{"id":"https://openalex.org/T12599","display_name":"Retinal and Optic Conditions","value":1.99e-05,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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/T11438","display_name":"Retinal Imaging and Analysis","value":1.87e-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/T10387","display_name":"Fatty Acid Research and Health","value":1.73e-05,"subfield":{"id":"https://openalex.org/subfields/2916","display_name":"Nutrition and Dietetics"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10170","display_name":"Retinal Diseases and Treatments","value":1.45e-05,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"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":0.78766930103302},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.7301861643791199},{"id":"555293320","wikidata":"https://www.wikidata.org/wiki/Q12206","display_name":"Diabetes mellitus","score":0.6786928772926331},{"id":"134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","score":0.6025629639625549},{"id":"118487528","wikidata":"https://www.wikidata.org/wiki/Q161437","display_name":"Ophthalmology","score":0.5031811594963074}],"counts_by_year":[{"year":1973,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1977,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"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":11},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":3}],"display_name_alternatives":["K J Zahn","K. J. Zahn","K.J. Zahn"],"block_key":"k zahn","works_api_url":"https://api.openalex.org/works?filter=author.id:A5110072498","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}