1. Department of Psychiatry; Brain Center Rudolf Magnus; University Medical Center Utrecht; Utrecht The Netherlands
2. Department of Psychosis Studies; Institute of Psychiatry; King's Health Partners; King's College London; London UK
3. Faculty of Psychology and Educational Sciences; Open University of the Netherlands; Heerlen The Netherlands
4. Centre for Epidemiology and Public Health; Health Service and Population Research Department; Institute of Psychiatry; Psychology & Neuroscience; King's College London; London UK
5. GGzE; Institute for Mental Health Care Eindhoven and De Kempen; Eindhoven The Netherlands
6. Department of Psychiatry; Yale School of Medicine; New Haven CT USA