[1] Univ Michigan, Dept Psychiat, MBNI, Ann Arbor, MI 48109 USA
[2] Virginia Commonwealth Univ, Sch Med, Dept Psychiat, Richmond, VA 23298 USA
[3] Virginia Commonwealth Univ, Sch Med, Dept Obstet & Gynecol, Richmond, VA 23298 USA
[4] Via Christi Res Inc, Wichita, KS 67214 USA
[5] Univ Pittsburgh, GSPH, Epidemiol Data Ctr, Pittsburgh, PA 15261 USA
[6] Massachusetts Gen Hosp, Boston, MA 02114 USA
[7] Univ Texas, SW Med Ctr, Dept Psychiat, Dallas, TX 75235 USA
[8] Univ Texas, SW Med Ctr, Dept Clin Sci, Dallas, TX 75390 USA
[9] Univ Texas, SW Med Ctr, Dept Psychiat, Dallas, TX 75390 USA