Olaf Klungel is Professor of Pharmacoepidemiologic Methods, chair of the division of Pharmacoepidemiology & Clinical Pharmacology, and scientific director of the Utrecht Institute of Pharmceutical Sciences (UIPS) at Utrecht University. He was trained as a pharmacist and epidemiologist. His main research area is the development, improvement and evaluation of innovative methods of observational drug research. Main applications are in the post-registration phase of drug development. Prof. Klungel is member of the Methodology Working Party of the European Medicines Agency. past-elected member of the Steering Committee of ENCePP, past President of the International Society of Pharmacoepidemiology (ICPE) and is PI of the EU Pharmacoepidemiology & Pharmacovigilance Research Network (EU PE&PV). He is Editor of the European Office of Pharmacoepidemiology & Drug Safety. Prof. Klungel teaches pharmacoepidemiology and pharmacotherapy to medical and pharmacy students. He is (co-)author of over 350 papers in peer reviewed journals, book chapters and research reports.