1. Universitair Psychiatrisch Centrum, KU Leuven campus UC St. Jozef Kortenberg, Belgium
2. Servicio de Psiquiatria, Hospital Meixoeiro Complejo, Hospitalario Universitario de Vigo, Spain
3. Clinic of Psychiatry, Faculty of Medicine and University Hospital, Bratislava, Slovakia
4. FNSP Hradec Kralove, Hradec Kralove, Czechoslovakia
5. Division ‘Meervoudige Zorg’, GGZ Friesland, Leeuwarden, The Netherlands
6. SU/Östra RPV, Hisings-Backa, Sweden
7. SGS Life Science Services, Mechelen, Belgium
8. Johnson & Johnson Pharmaceutical Services, Raritan, US
9. Johnson & Johnson Pharmaceutical Services, Beerse, Belgium