[1] McMaster Univ, Michael G DeGroote Sch Med, Hamilton, ON, Canada
[2] Univ Toronto, Fac Med, Toronto, ON, Canada
[3] Laurentian Univ, Fac Med, Northern Ontario Sch Med, Sudbury, ON, Canada
[4] Ctr Addict & Mental Hlth, Campbell Family Mental Hlth Res Inst, Toronto, ON, Canada
[5] Univ Toronto, Dept Psychiat, Toronto, ON, Canada
[6] Univ Toronto, Inst Mental Hlth Policy Res, Toronto, ON, Canada
[7] Univ Toronto, Campbell Family Mental Hlth Res Inst, Ctr Addict & Mental Hlth, Toronto, ON, Canada
[8] Univ Toronto, Inst Hlth Policy Management & Evaluat, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada
[9] Univ Toronto, Dept Pharmacol & Toxicol, Toronto, ON, Canada
[10] Ctr Addict & Mental Hlth, 33 Ursula Franklin St, Toronto, ON M5S 2S1, Canada