1. Department of Psychiatry; St. Antonius Ziekenhuis; Utrecht The Netherlands
2. Department of Psychiatry; Leiden University Medical Center; Leiden The Netherlands
3. Department of Geriatric Psychiatry; Arkin Mental Health Care; Amsterdam The Netherlands
4. Department of Psychiatry; EMGO Institute of Health and Care Research; VU University Medical Center; Amsterdam The Netherlands
5. Department of Psychiatry PuntP; Arkin Mental Health Care; Amsterdam
6. Department of Psychology; VU University Medical Center; Amsterdam The Netherlands
7. Department of Clinical Research; Arkin Mental Health Care; Amsterdam The Netherlands
8. Department of Psychiatry, CAPRI; University of Antwerp; Antwerp Belgium