1. Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada;
2. Department of Psychiatry, University of Toronto, Toronto, ON, Canada;
3. Laboratory Medicine and Pathophysiology, University of Toronto, ON, Canada;
4. Center of Excellence for Eating Disorders at the University of North Carolina at Chapel Hill, NC, USA;
5. Institute of Medical Science, University of Toronto, Toronto, ON, Canada;
6. Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA;
7. Department of Psychiatry, Columbia University College of Physicians and Surgeons, NY, USA;
8. Psychiatry and Behavioral Sciences, Pharmacology and Physiology, Chemistry of Life Processes Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA