1. Section of Geriatric Medicine; Department of Internal Medicine; Erasmus MC; University Medical Center Rotterdam; Rotterdam The Netherlands
2. Department of Surgery-Traumatology; Erasmus MC; University Medical Center Rotterdam; Rotterdam The Netherlands
3. Section of Geriatric Medicine; Department of Internal Medicine; Academic Medical Center; Amsterdam The Netherlands
4. Department of Internal Medicine; VU University Medical Center; Amsterdam The Netherlands
5. Department Endocrinology; VU University Medical Center; Amsterdam The Netherlands
6. Public Health; Erasmus MC; University Medical Center Rotterdam; Rotterdam The Netherlands
7. Emergency Medicine; Erasmus MC; University Medical Center Rotterdam; Rotterdam the Netherlands
8. Department of Medicine; Brighton and Sussex Medical School; Brighton UK
9. Faculty of Industrial Design Engineering; Delft University of Technology; Delft the Netherlands