1. Emergency Department Haaglanden Medical Center The Hague The Netherlands
2. Department of Internal Medicine, Section of Gerontology and Geriatrics Leiden University Medical Center Leiden The Netherlands
3. Department of Public Health and Primary Care Leiden University Medical Center Leiden The Netherlands
4. Department of Psychiatry Leiden University Medical Center Leiden The Netherlands
5. Department of Psychiatry CAPRI‐University Antwerp Antwerp Belgium