[1] Univ Toronto, Sunnybrook Hlth Sci Ctr, Dept Psychiat, Mood & Anxiety Disorders Program, Toronto, ON M4N 3M5, Canada
[2] Univ British Columbia, Dept Psychiat, Copeman Healthcare Ctr, Vancouver, BC, Canada
[3] Univ Toronto, Sunnybrook Hlth Sci Ctr, Dept Psychiat, Youth Bipolar Disorders Program, Toronto, ON M4N 3M5, Canada
[4] Univ Toronto, Sunnybrook Hlth Sci Ctr, Dept Psychiat, Sunnybrook Res Inst, Toronto, ON M4N 3M5, Canada
[5] Univ Toronto, Univ Hlth Network, Dept Psychiat, Mood Disorders Psychopharmacol Unit, Toronto, ON M4N 3M5, Canada
[6] Univ Toronto, Univ Hlth Network, Dept Pharmacol, Mood Disorders Psychopharmacol Unit, Toronto, ON M4N 3M5, Canada
[7] McGill Univ, Dept Psychiat, Douglas Mental Hlth Univ Inst, Montreal, PQ, Canada
[8] McMaster Univ, Dept Psychiat & Behav Neurosci, Anxiety Treatment & Res Ctr, Hamilton, ON, Canada