[1] Univ Calif Los Angeles, Dept Psychiat & Biobehav Sci, Los Angeles, CA 90073 USA
[2] Greater Los Angeles VA Healthcare Ctr, Los Angeles, CA 90073 USA
[3] Univ Calif Los Angeles, Dept Psychiat & Biobehav Sci, Semel Inst Biostat Core SIStat, Los Angeles, CA 90073 USA
[4] James J Peters VA Med Ctr, Bronx, NY USA
[5] Long Beach VA Healthcare Syst, Long Beach, CA USA
[6] Michael E DeBakey VA Med Ctr, Houston, TX USA
[7] Cent Texas Vet Healthcare Syst, Waco, TX USA