Margaret A. (Peggy) Richter, MD, is the inaugural head of the Frederick W. Thompson Anxiety Disorders Centre at Sunnybrook Health Sciences Centre, focused on research and treatment of obsessive-compulsive disorder (OCD) and related conditions. She is also Associate Professor of Psychiatry at the University of Toronto, a scientist with the Brain Sciences Research Program at Sunnybrook Research Institute, and with the Neurogenetics Section, Neurosciences Department, at the Centre for Addiction and Mental Health.