1. Department of Medical Informatics; Erasmus University Medical Center; Rotterdam the Netherlands
2. Dutch Medicines Evaluation Board; Utrecht the Netherlands
3. Campania Regional Center of Pharmacovigilance and Pharmacoepidemiology, Department of Experimental Medicine, Pharmacology Section; Second University of Naples; Naples Italy
4. Department of Clinical and Experimental Medicine and Pharmacology, Section of Pharmacology; University of Messina; Messina Italy
5. Agenzia Regionale di Sanità della Toscana; Florence Italy
6. PHARMO Institute; Utrecht the Netherlands
7. Società Italiana di Medicina Generale; Florence Italy
8. Pedianet-Società Servizi Telematici SRL; Padova Italy
9. Department of Statistics, Universita di Milano-Bicocca; Milan Italy
10. Department of Clinical Epidemiology; Aarhus University Hospital Aarhus; Denmark
11. Department of Epidemiology; Erasmus University Medical Center; Rotterdam the Netherlands
12. Inspectorate of Health Care; The Hague the Netherlands