[1] Ctr Addict & Mental Hlth, Social & Epidemiol Res SER Dept, Toronto, ON, Canada
[2] Univ Toronto, Inst Med Sci, Toronto, ON M5S 1A1, Canada
[3] Univ Toronto, Dalla Lana Sch Publ Hlth, Chair Addict Policy, Toronto, ON M5S 1A1, Canada
[4] Univ Toronto, Dept Psychiat, Toronto, ON M5S 1A1, Canada
[5] PAHO WHO Collaborating Ctr Mental Hlth & Addict, Dresden, Germany
[6] Tech Univ Dresden, D-01062 Dresden, Germany
[7] Ctr Addict & Mental Hlth, Social & Epidemiol Res SER Dept, Toronto, ON, Canada
[8] Univ Toronto, Inst Med Sci, Toronto, ON M5S 1A1, Canada