1. VA San Diego Healthcare System (VASDHS), San Diego, California, USA.
2. Department of Psychiatry, University of California San Diego, La Jolla, California, USA.
3. Center of Excellence for Stress and Mental Health, VASDHS, San Diego, California, USA.
4. VA Informatics and Computing Infrastructure (VINCI), VA Salt Lake City Health Care System, Salt Lake City, Utah, USA.