1. Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
2. Department of Health Promotion, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
3. Centre of Interdisciplinary Addiction Research (ZIS), Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
4. Addictions Unit, Psychiatry Department, Hospital Clínic, Barcelona, Spain
5. Red de Trastornos Adictivos, Instituto Carlos III. Sinesio Delgado, Madrid, Spain
6. Institut d’Investigacions Biomèdiques August Pi Sunyer (IDIBAPS); Rosselló, Barcelona, Spain
7. Corporación Nuevos Rumbos, Bogotá, Colombia
8. Instituto Nacional de Psiquiatría Ram´on de la Fuente, Ciudad de México, Mexico
9. School of Public Health and Administration, Universidad Peruana Cayetano Heredia, San Martin de Porres, Peru
10. Institute for Mental Health Policy Research, Toronto, Ontario, Canada
11. Univ. Ramon Llull, ESADE, Barcelona, Spain