[1] Univ British Columbia, Dept Med, Vancouver, BC, Canada
[2] Ctr Toxicomanie Colombie Britann, Vancouver, BC, Canada
[3] Programme Classes Medicaments, Craven, SK, Canada
[4] Univ Manitoba, Dept Psychiat, Winnipeg, MB, Canada
[5] Ctr Waypoint Sante Mentale, Winnipeg, MB, Canada
[6] Govt Terr Nord Ouest, Minist Sante & Serv Sociaux, Programme Lutte Consommat Problemat Subst Tox, Yellowknife, NT, Canada
[7] Univ Ottawa, Ctr Sante Mentale Royal Ottawa, Ottawa, ON, Canada
[8] Univ Ottawa, Dept Psychiat, Ottawa, ON, Canada
[9] Regie Sante Premieres Nations, Vancouver, BC, Canada
[10] Univ Saskatchewan, Ecole Pharm & Nutr, Saskatoon, SK, Canada
[11] Univ Calgary, Calgary, AB, Canada
[12] Soc Assurance Knight Archer, Regina, SK, Canada
[13] Ctr Toxicomanies & Sante Mentale, Inst Rech Polit Sante Mentale, Toronto, ON, Canada
[14] Univ Toronto, Ecole Dalla Lana Sante Publ, Toronto, ON, Canada
[15] Initiat Rech Canadienne Abus Subst, Vancouver, BC, Canada