1. GGzE; Institute of Mental Health Care Eindhoven and the Kempen; P.O. Box 909, 5600 AX Eindhoven The Netherlands
2. Department of Psychiatry and Psychology; Maastricht University Medical Centre; European Graduate School of Neuroscience; SEARCH, P.O. Box 616, 6200 MD Maastricht The Netherlands
3. Mondriaan Mental Health Trust; South Limburg The Netherlands
4. King's College London; Department of Psychosis Studies; Institute of Psychiatry London UK