1. Division of Neurotherapeutics, Massachusetts General Hospital, Boston
2. Obsessive-Compulsive Disorder Institute, McLean Hospital, Belmont, Massachusetts
3. Obsessive-Compulsive and Related Disorders Program, Massachusetts General Hospital, Boston
4. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
5. Biological Psychiatry Laboratory, McLean Hospital, Belmont, Massachusetts
6. BC Mental Health & Addictions Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
7. Picower Institute for Learning and Memory, Massachusetts Institute for Technology, Cambridge