1. De Hoop GGZ, Provincialeweg 70, 3329 KP Dordrecht, The Netherlands
2. Center on Alcoholism, Substance Abuse, and Addictions (CASAA), The University of New Mexico (UNM), MSC 11 6280, Albuquerque, NM 87106, USA
3. The University of New Mexico, MSC 03-2220, Albuquerque, NM 87131, USA
4. Mentrum/Arkin, Domselaerstraat 126, 1093 MB Amsterdam, The Netherlands
5. Collaborative Antwerp Psychiatric Research Institute (CAPRI), Antwerp University, Universiteitsplein 1, 2610 Antwerp, Belgium