[1] Univ Southern Calif, Keck Sch Med, Dept Populat & Publ Hlth Sci, 2250 Alcazar St, Los Angeles, CA 90033 USA
[2] Univ Southern Calif, Inst Addict Sci, Keck Sch Med, Los Angeles, CA USA
[3] Inst Mental Hlth Policy Res, Ctr Addict & Mental Hlth, Toronto, ON, Canada
[4] Ctr Addict & Mental Hlth, Addict Div, Toronto, ON, Canada
[5] Univ Toronto, Dept Psychiat, Toronto, ON, Canada
[6] Univ Toronto, Dept Pharmacol & Toxicol, Toronto, ON, Canada
[7] Campbell Family Mental Hlth Res Inst, Ctr Addict & Mental Hlth, Toronto, ON, Canada
[8] Univ Toronto, Inst Med Sci, Toronto, ON, Canada
[9] Univ Toronto, Fac Med, Dept Family & Community Med, Toronto, ON, Canada
[10] Waypoint Res Inst, Waypoint Ctr Mental Hlth Care, Penetanguishene, ON, Canada