1. Dutch Institute for Rational Use of Medicine Utrecht the Netherlands
2. Department of PharmacoTherapy, ‐Epidemiology and ‐Economics (PTEE Groningen Research Institute of Pharmacy Faculty of Science and Engineering University of Groningen Groningen the Netherlands
3. Department of General Practice Julius Center for Health Sciences and Primary Care University Medical Center UtrechtUtrecht University Utrecht the Netherlands
4. Leidsche Rijn Julius Healthcare Centers Utrecht the Netherlands
5. Nivel, Netherlands Institute for Health Services Research Utrecht the Netherlands
6. Division of Pharmacoepidemiology and Clinical Pharmacology Utrecht Institute for Pharmaceutical Sciences (UIPSUtrecht University Utrecht the Netherlands