[1] Univ Maryland, Sch Med, Dept Psychiat, Baltimore, MD 21201 USA
[2] Univ Maryland, Sch Med, Dept Epidemiol, Baltimore, MD 21201 USA
[3] Vet Affairs Capitol Healthcare Network, Mental Illness Res Educ & Clin Ctr, Baltimore, MD USA
[4] Sheppard Pratt Hlth Syst, Dept Psychol, Baltimore, MD USA