1. Department of Geriatrics; Reinier de Graaf Gasthuis; Delft The Netherlands
2. Department of Clinical Pharmacy; University Medical Centre Utrecht; Utrecht The Netherlands
3. Department of Geriatrics; Harbour Hospital; Rotterdam The Netherlands
4. Pharmacoepidemiology Unit, Department of Epidemiology; Erasmus MC; Rotterdam The Netherlands
5. Department of Old Age Psychiatry; Parnassia Psychiatric Institute; The Hague The Netherlands
6. Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute of Pharmaceutical Sciences, Faculty of Science; Utrecht University; Utrecht The Netherlands