[1] S Texas Vet Hlth Care Syst, Frank Tejeda Outpatient Clin, Dept Vet Affairs, San Antonio, TX 78240 USA
[2] Univ Texas Hlth Sci Ctr San Antonio, Dept Psychiat, San Antonio, TX 78229 USA
[3] Univ Texas Hlth Sci Ctr San Antonio, Dept Med, Div Clin Epidemiol, San Antonio, TX 78229 USA
[4] Clement J Zablocki VA Med Ctr, Dept Psychiat & Behav Med, Milwaukee, WI USA
[5] Med Coll Wisconsin, Milwaukee, WI USA
[6] Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA USA
[7] Univ Washington, Sch Med, Dept Psychiat & Behav Sci, Seattle, WA 98195 USA