[1] Inst Mental Hlth Policy Res, Ctr Addict & Mental Hlth, 33 Ursula Franklin St,T521, Toronto, ON M5S 2S1, Canada
[2] Campbell Family Mental Hlth Res Inst, Ctr Addict & Mental Hlth, Toronto, ON, Canada
[3] Univ Toronto, Dept Psychiat, Toronto, ON, Canada
[4] Univ Toronto, Inst Med Sci, Toronto, ON, Canada
[5] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[6] Lithuanian Univ Hlth Sci, Hlth Res Inst, Fac Publ Hlth, Kaunas, Lithuania
[7] Lithuanian Univ Hlth Sci, Fac Publ Hlth, Dept Prevent Med, Kaunas, Lithuania
[8] Publ Hlth Agcy Catalonia, Program Subst Abuse, Barcelona, Catalonia, Spain
[9] Publ Hlth Agcy Catalonia, WHO European Reg Collaborat Ctr, Barcelona, Catalonia, Spain
[10] Univ Klinikum Hamburg Eppendorf, Zentrum Interdisziplinare Suchtforsch ZIS, Hamburg, Germany