1. Veterans Affairs (VA) Medical Center, Bronx, New York
2. Department of Psychiatry, Mount Sinai School of Medicine, New York, New York
3. VA Cooperative Studies Program, Hines, Illinois
4. VA Cooperative Studies Program Clinical Research Coordinating Center, Albuquerque, New Mexico
5. VA Medical Center, Salisbury, North Carolina
6. Department of Psychiatry and Radiology, Wake Forest School of Medicine, Winston-Salem, North Carolina
7. Central Arkansas VA Healthcare, University of Arkansas, Fayetteville
8. VA San Diego Healthcare System, University of California, San Diego, San Diego