{"schema_version":"1","generated_at":"2026-11-05T11:22:16.197Z","data_as_of":null,"url":"https://www.findmykol.com/kol/gerrit-wal","json_url":"https://www.findmykol.com/kol/gerrit-wal/profile.json","record_kind":"basic","profile_kind":"research","person":{"slug":"gerrit-wal","name":"Gerrit van der Wal","specialty":"Medicine","therapeutic_areas":[],"institution":"Amsterdam Public Health","institution_url":"https://www.findmykol.com/institution/amsterdam-public-health","register":{"country":"NL"}},"identifiers":{"openalex":"A5109845403"},"summary":"Gerrit van der Wal is a Medicine researcher affiliated with Amsterdam Public Health. OpenAlex indexes 381 publications with 16,937 citations (h-index 70).","overview":null,"focus":{"indications":[],"research_topics":[]},"scholarship":{"works_count":381,"cited_by_count":16937,"h_index":70,"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":"Marjolein Visser","slug":"marjolein-visser","institution":"Amsterdam Public Health","url":"https://www.findmykol.com/kol/marjolein-visser","json_url":"https://www.findmykol.com/kol/marjolein-visser/profile.json"},{"name":"Jos W. R. Twisk","slug":"jos-twisk","institution":"Amsterdam Public Health","url":"https://www.findmykol.com/kol/jos-twisk","json_url":"https://www.findmykol.com/kol/jos-twisk/profile.json"},{"name":"Jacob C. Seidell","slug":"jacob-seidell","institution":"Amsterdam Public Health","url":"https://www.findmykol.com/kol/jacob-seidell","json_url":"https://www.findmykol.com/kol/jacob-seidell/profile.json"},{"name":"Martin den Heijer","slug":"martin-heijer","institution":"Amsterdam Public Health","url":"https://www.findmykol.com/kol/martin-heijer","json_url":"https://www.findmykol.com/kol/martin-heijer/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":{"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"}