1. Division of Pharmacoepidemiology & Clinical Pharmacology Utrecht Institute for Pharmaceutical Sciences (UIPS) Utrecht The Netherlands
2. SIR Institute for Pharmacy Practice and Policy Leiden The Netherlands
3. Service Apotheek, ‘s‐Hertogenbosch The Netherlands
4. Department of Public Health and Primary Care Leiden University Medical Center Leiden The Netherlands
5. Department of Internal Medicine, section Gerontology and Geriatrics Leiden University Medical Center Leiden The Netherlands