{"schema_version":"1","generated_at":"2026-11-04T16:56:32.305Z","data_as_of":null,"url":"https://www.findmykol.com/kol/frank-gruijl","json_url":"https://www.findmykol.com/kol/frank-gruijl/profile.json","record_kind":"basic","profile_kind":"research","person":{"slug":"frank-gruijl","name":"Frank R. de Gruijl","specialty":"Medicine","therapeutic_area":"Dermatology","therapeutic_areas":["Dermatology"],"institution":"Leiden University Medical Center","institution_url":"https://www.findmykol.com/institution/leiden-university-medical-center","register":{"country":"NL"}},"identifiers":{"orcid":"0000-0001-6264-3982","openalex":"A5019483239"},"summary":"Frank R. de Gruijl is a Dermatology researcher affiliated with Leiden University Medical Center. OpenAlex indexes 304 publications with 13,663 citations (h-index 61).","overview":null,"focus":{"indications":[],"research_topics":["Dermatology"]},"scholarship":{"works_count":304,"cited_by_count":13663,"h_index":61,"source":"works"},"payments":{"note":"Not applicable. This profile is anchored outside the United States, where CMS Open Payments and Medicare prescribing do not report."},"similar":[{"name":"Ton N. Schumacher","slug":"ton-schumacher","institution":"Leiden University Medical Center","url":"https://www.findmykol.com/kol/ton-schumacher","json_url":"https://www.findmykol.com/kol/ton-schumacher/profile.json"},{"name":"Christian U. Blank","slug":"christian-blank","institution":"Leiden University Medical Center","url":"https://www.findmykol.com/kol/christian-blank","json_url":"https://www.findmykol.com/kol/christian-blank/profile.json"},{"name":"Michel D. Ferrari","slug":"michel-ferrari","institution":"Leiden University Medical Center","url":"https://www.findmykol.com/kol/michel-ferrari","json_url":"https://www.findmykol.com/kol/michel-ferrari/profile.json"},{"name":"Ernst Evert van der Wall","slug":"ernst-wall","institution":"Leiden University Medical Center","url":"https://www.findmykol.com/kol/ernst-wall","json_url":"https://www.findmykol.com/kol/ernst-wall/profile.json"},{"name":"Robert Modlin","slug":"robert-modlin","institution":"University of California, Los Angeles","specialty":"Dermatology","url":"https://www.findmykol.com/kol/robert-modlin","json_url":"https://www.findmykol.com/kol/robert-modlin/profile.json"},{"name":"Jon Hanifin","slug":"jon-hanifin","institution":"Oregon Health & Science University (OHSU)","specialty":"Dermatology","url":"https://www.findmykol.com/kol/jon-hanifin","json_url":"https://www.findmykol.com/kol/jon-hanifin/profile.json"},{"name":"Heidi Kong","slug":"heidi-kong","institution":"National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)","specialty":"Dermatology","url":"https://www.findmykol.com/kol/heidi-kong","json_url":"https://www.findmykol.com/kol/heidi-kong/profile.json"},{"name":"Joel Gelfand","slug":"joel-gelfand","institution":"University of Pennsylvania","specialty":"Dermatology","url":"https://www.findmykol.com/kol/joel-gelfand","json_url":"https://www.findmykol.com/kol/joel-gelfand/profile.json"}],"coverage":{"note":"A basic directory record. Sections absent here were not yet checked for this person, so absence means not yet looked, never none found.","not_yet_checked":["funding","congress","network","presence","recognition"]},"not_included":{"note":"This document is the public layer: neutral facts cited to their source. Judgments (influence tier, archetype, trajectory commentary) and the itemized rows past each section's public teaser are account features and are not served here or to crawlers.","withheld_rows":{}},"sources":{"orcid":{"name":"ORCID","url":"https://orcid.org","provides":"The verified researcher identity that anchors authorship"},"works":{"name":"OpenAlex","url":"https://openalex.org","provides":"Citations, h-index, research topics, most-cited works and congress abstracts"}},"methodology_url":"https://www.findmykol.com/about#methodology"}