[1] VA Puget Sound Hlth Care Syst, Seattle, WA USA
[2] Univ Washington, Dept Psychiat & Behav Sci, Seattle, WA 98195 USA
[3] Ctr Excellence Study Healthcare Provider Behav, VA Greater Los Angeles Hlth Serv Res & Dev, Sepulveda, CA USA
[4] Univ Washington, Ctr Excellence Subst Abuse Treatment & Educ, Seattle, WA 98195 USA
[5] Univ Iowa, Carver Coll Med, Iowa City VA Med Ctr, Iowa City, IA 52242 USA
[6] Univ Iowa, Carver Coll Med, Dept Psychiat, Iowa City, IA 52242 USA
[7] Univ Calif Los Angeles, Sch Med, Dept Med, Los Angeles, CA 90024 USA