1. Mood Disorders Psychopharmacology Unit, University Health Network, Toronto, Ontario, Canada
2. Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
3. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
4. Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada
5. Department of Psychiatry, University of Ottawa, Ottawa, Ontario, Canada
6. Department of Psychiatry, Federal University of São Paulo, São Paulo, Brazil
7. Department of Psychiatry & Behavioral Sciences, Stanford University, School of Medicine, Palo Alto, California