Rheumatologist (Dept Rheumatology-Expert Centre for Complex Gout & Ramanspectroscopy / Viecuri MC / Venlo); Researcher Crystallopathy: crystal imaging/identification (co-founder human Crystal Research BV - Crystallytics BV) with integrated Ramanspectroscopy - Polarized Light Microscopy [iRPoLM]; Clinical researcher Viecuri & University Twente: PI in Gout study (Overture: Treat 2 Target vs Treat 2 Symptoms) and previously TNFi stop study (ZonMW-funded POET and POET-US)/ Dapansutrile (innovative NLRP3 inhibitor) proof of concept study in acute gout and PI international RCT for acute gout PLUS novel indication; Real World Outcome Researcher with Text Mining (Omega project); former Chair Dream platformClinical Advisory Board Olatec; Member Advisory Board Sarcoidosis Patient Society;Author on many publications (>200 on Pubmed) on Gout/crystallopathy/ULTs, Biologics in RA and sarcoid: co-promotor for PhD students on practice research in RA/pracice research in gout/pharmacotherapeutic options in sarcoid/TNFi stopping in established RA/US as predictor to stop bDMARDs/gout and e-Health.PhD thesis (1993): Pharmacological and Vascular studies on the short-term effects of Atrial Natriuretic Factor (prof Theo Thien / Paul Smits).Current studies: Ramanspectroscopy for Crystal analysis in rheumatologigy; NLRP3 inhibition (International Placebo-Controlled RCT enrolling Q1 2023); 1 ZEGG Gout Trial (go test Overture); 1 RA trial: PERFECT RA (H2H etanercept vs baricitinib -finished); 1 PsA trial (TofaPredict)