1. Department of Geriatrics; University Medical Center Utrecht; Utrecht The Netherlands
2. Expertise Centre Pharmacotherapy for Old Persons (Ephor); Utrecht The Netherlands
3. Department of General Practice, Julius for Health Sciences and Primary Care; University Medical Centre Utrecht; Utrecht The Netherlands
4. Department of Geriatrics; Jeroen Bosch Hospital; 's-Hertogenbosch The Netherlands
5. Department of Information and Computing Sciences; Utrecht University; Utrecht The Netherlands
6. VUmc, Department of General Practice & Elderly Care Medicine; EMGO+ Institute for Health and Care Research; Amsterdam The Netherlands