1. Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences Utrecht University Utrecht The Netherlands
2. Department of Clinical Epidemiology Leiden University Medical Center Leiden The Netherlands
3. Department of Integrated Primary Care Netherlands Institute for Health Services Research Utrecht The Netherlands
4. Julius Center for Health Sciences and Primary Care University Medical Center Utrecht Utrecht The Netherlands
5. Department of Clinical Pharmacy, Division Laboratory and Pharmacy University Medical Center Utrecht Utrecht The Netherlands
6. Faculty of Pharmaceutical Sciences University of Iceland Reykjavik Iceland