1. Department of Radiology; Leiden University Medical Centre; Leiden the Netherlands
2. Department of Psychiatry; Leiden University Medical Centre; Leiden the Netherlands
3. Department of Public Health and Primary Care; Leiden University Medical Centre; Leiden the Netherlands
4. Department of Psychiatry; CAPRI-University of Antwerp; Antwerp Belgium
5. Department of Gerontology and Geriatrics; Leiden University Medical Centre; Leiden the Netherlands