1. Department of Surgery-Traumatology, Erasmus MC – University Medical Center Rotterdam, Rotterdam, the Netherlands
2. Section of Geriatric Medicine, Department of Internal Medicine, Erasmus MC – University Medical Center Rotterdam, Rotterdam, the Netherlands
3. Department of Public Health, Erasmus MC – University Medical Center Rotterdam, Rotterdam, the Netherlands
4. Department of Emergency Medicine, Erasmus MC – University Medical Center Rotterdam, Rotterdam, the Netherlands