1. Department of Geriatric Medicine Erasmus MC, University Medical Center Rotterdam The Netherlands
2. Department of Geriatric Medicine OLVG Hospitals Amsterdam Amsterdam The Netherlands
3. Department of Emergency Medicine VieCuri Medical Center Venlo The Netherlands
4. Intensive Care Department VieCuri Medical Center Venlo The Netherlands
5. Department of Geriatric Medicine Reinier de Graaf Hospital Delft The Netherlands
6. KBO‐PCOB Nieuwegein The Netherlands
7. Department of Geriatric Medicine Alrijne Hospital Leiderdorp The Netherlands
8. Department of Geriatric Medicine Medical Center Leeuwarden Leeuwarden The Netherlands
9. Intensive Care Department Erasmus Medical Center Rotterdam The Netherlands
10. Department of Geriatric Medicine Catharina Hospital Eindhoven The Netherlands
11. Department of Gerontology and Geriatrics LUMC Leiden The Netherlands
12. Department of Geriatric Medicine UMCG Groningen The Netherlands
13. Intensive Care Department Reinier de Graaf Hospital Delft The Netherlands
14. Department of Internal Medicine and Geriatrics Amsterdam University Medical Centers Amsterdam The Netherlands