1. Palo Alto Geriatric Research, Education, and Clinical Center (GRECC) VA Palo Alto Health Care System Palo Alto CA USA
2. Department of Psychiatry and Behavioral Sciences Stanford University School of Medicine Stanford CA USA
3. National Center for PTSD VA Palo Alto Health Care System Palo Alto CA USA
4. Sierra Pacific Mental Illness Research Education and Clinical Center (MIRECC) VA Palo Alto Health Care System Palo Alto CA USA
5. Pacific Graduate School of Psychology Palo Alto University Palo Alto CA USA
6. Medical Service VA Palo Alto Health Care System Palo Alto CA USA
7. Stanford University Center for Primary Care and Outcomes Research (PCOR) Stanford CA USA
8. Psychology Service VA San Diego Healthcare System San Diego CA USA
9. Department of Psychiatry University of California San Diego CA USA