[1] Johns Hopkins Univ, Sch Med, Dept Psychiat & Behav Sci, Baltimore, MD 21224 USA
[2] Washington State Univ, Coll Nursing, Spokane, WA 99210 USA
[3] Univ Connecticut, Sch Med, Dept Psychiat, Farmington, CT 06030 USA
[4] Univ Kentucky, Coll Med, Ctr Drug & Alcohol Res, Lexington, KY 40502 USA
[5] Friends Res Inst, Baltimore, MD 21201 USA
[6] HARBEL Prevent & Recovery Ctr, Baltimore, MD 21214 USA