1. Faculty of Science and Engineering, Unit of Pharmacotherapy, Epidemiology and Economy, Groningen Research Institute of Pharmacy, University of Groningen , Antonius Deusinglaan 1, 9713 AV Groningen , The Netherlands
2. Pharmacy De Drie Stellingen , Brink 1-101, 8431 LD Oosterwolde , The Netherlands
3. SIR Institute for Pharmacy Practice and Policy , Theda Mansholtstraat 5-B, 2331 JE Leiden , The Netherlands
4. Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University , Universiteitsweg 99, 3584 CG Utrecht , The Netherlands