[1] Ctr Addict & Mental Hlth, Social & Epidemiol Res Dept, Toronto, ON, Canada
[2] Univ Toronto, Dalla Lana Sch Publ Hlth, Addict Policy, Toronto, ON, Canada
[3] Univ Toronto, Inst Med Sci, Fac Med, Med Sci Bldg, Toronto, ON, Canada
[4] Univ Toronto, Dept Psychiat, Toronto, ON, Canada
[5] Tech Univ Dresden, Inst Clin Psychol & Psychotherapy, Dresden, Germany
[6] Tech Univ Dresden, Ctr Clin Epidemiol & Longitudinal Studies CELOS, Dresden, Germany
[7] Ctr Addict & Mental Hlth, WHO Collaborating Ctr Mental Hlth & Addict, Toronto, ON, Canada
[8] Primary Hlth Care Ctr La Eria Oviedo, Oviedo, Spain
[9] Primary Care Spanish Soc SEMERGEN, Madrid, Spain
[10] Bavarian GP Assoc BHAV, Munich, Germany
[11] Soc Francaise Med Gen, Lssy Les Moulineaux, France
[12] DUMG SMBH Univ Paris 13, Bobigny, France
[13] CMS Cornet, Pantin, France
[14] Italian Coll Gen Practitioners, Florence, Italy
[15] Univ Hamburg, Univ Klin Hamburg Eppendorf, Ctr Interdisciplinary Addict Res, Univ Hamburg, Hamburg, Germany
[16] Serv Madrileno Salud, Primary Hlth Care Ctr Ibiza, Madrid, Spain
[17] Soc Espanola Med Familiar & Comunitaria SemFYC, Madrid, Spain
[18] Univ Complutense Madrid, Dept Med Interna, Madrid, Spain
[19] Univ Paris 11, Univ Paris Saclay, INSERM, UVSO,CESP, Villejuif, France
[20] Hop Univ Paris Sud, APHP, Villejuif, France
[21] Copentown Hlthcare Consultants, Cape Town, South Africa
[22] Royal Coll Gen Practitioners, London, England
[23] IFT Inst Therapieforsch, Munich, Germany
[24] Stockholm Univ, Ctr Social Res Alcohol & Drugs SoRAD, Stockholm, Sweden
[25] WHO Collaborating Ctr Hlth Promot & Res Alcohol &, Rome, Italy
[26] CNESPS, Natl Observ Alcohol, Populat Hlth Unit, Rome, Italy
[27] Italian Soc Alcohol, Bologna, Italy
[28] Hosp Clin Barcelona, Neurosci Inst, Dept Psychiat, Addict Unit, Barcelona, Spain
[29] Inst Invest Biomed August Pi & Sunyer IDIBAPS, Barcelona, Spain
[30] Inst Salud Carlos III, Red Trastornos Adict RTA RETICS, Barcelona, Spain
[31] Tech Univ Dresden, Chemnitzer Str 46, D-01187 Dresden, Germany