1. KU Leuven - University of Leuven, Department of Rehabilitation Sciences; Leuven Belgium
2. KU Leuven - University of Leuven, Z.org KU Leuven; Kortenberg Belgium
3. Zucker Hillside Hospital; Glen Oaks NY USA
4. Hofstra North Shore LIJ School of Medicine; Hempstead NY USA
5. School of Psychiatry and Ingham Institute of Applied Medical Research; University of New South Wales; Sydney Australia
6. Department of Psychosis Studies; Institute of Psychiatry, King's College London; London UK
7. Physiotherapy Department, South London and Maudsley NHS Foundation Trust; London UK
8. Health Service and Population Research Department; Institute of Psychiatry, King's College London; London UK