Prof Jan Cohen Tervaert (J.W.)

Chairman of the scientific advisory board of the Dutch Arthritis Foundation (Reumafonds)

Chairman of the Advisory Board of the Dutch Vasculitis Foundation (patient organization)

Member of the European Vasculitis study group (EUVAS)

Chairman of the National Study group for vasculitis studies

Steering member of the National Study group for “systeemziekten”

Organizer of conferences in immunology, internal medicine, nephrology, autoimmunity, and vasculitis

Member of the National Committee of Pharmaceutical Care

Editorial staff member of the Dutch Pharmacotherapy Kompas

Member of the Research Program Committee of “Priority Medicines rare disorders and Orphan Drugs”.

Member of the consultative group of the RIVM program:                           "Gezondheidsonderzoek gebruik gevaarlijke stoffen bij Defensie; POMS, chroom-6 en CARC"

Member of the ME Comittee of the Gezondheidsraad

Member of the Editorial Board of  “Clinical and Experimental Nephrology”

Member of the Editorial Board of “Clinical and experimental Rheumatology”, Vasculitis section

Member of the Editorial Board of “Journal of Vasculitis”