[1] Douglas Coll, Fac Humanities & Social Sci, Dept Psychol & Social Sci, New Westminster, BC, Canada
[2] Western Univ, Schulich Sch Med & Dent, Dept Epidemiol & Biostat, London, ON, Canada
[3] Queens Univ, Fac Hlth Sci, Sch Rehabil Therapy, Kingston, ON, Canada
[4] Western Univ, Brescia Univ Coll, Sch Leadership & Social Change, London, ON, Canada
[5] Africa Mental Hlth Res & Training Fdn, Nairobi, Kenya
[6] Lawson Hlth Res Inst, Parkwood Inst Res, London, ON, Canada
[7] St Josephs Hlth Care, London, ON, Canada
[8] Ctr Addict & Mental Hlth, Div Psychol, Toronto, ON, Canada
[9] Univ Toronto, Temerty Fac Med, Dept Psychiat, Toronto, ON, Canada
[10] Univ Nairobi, Fac Hlth Sci, Dept Psychiat, Nairobi, ON, Kenya
[11] Western Univ, Schulich Sch Med & Dent, Dept Psychiat, POB 5777,STN B, London, ON N6A 4V2, Canada