[1] VA San Diego Healthcare Syst, Dept Nursing & Patient Care Serv, Ctr Excellence Stress & Mental Hlth, San Diego, CA 92161 USA
[2] Univ Calif San Diego, Dept Psychiat, Ctr Excellence Stress & Mental Hlth, VA San Diego Healthcare Syst, La Jolla, CA 92093 USA
[3] Univ Calif San Diego, La Jolla, CA 92093 USA
[4] VA San Diego Healthcare Syst, Ctr Excellence Stress & Mental Hlth, San Diego, CA 92161 USA