[1] McLean Hosp, 115 Mill St, Belmont, MA 02478 USA
[2] Harvard Med Sch, Dept Psychiat Psychol, 25 Shattuck St, Boston, MA 02115 USA
[3] Partners Hlth Care Addict Psychiat Fellowship Tra, 115 Mill St, Belmont, MA 02478 USA
[4] West Virginia Univ, Dept Epidemiol, One Waterfront Pl, Morgantown, WV 26506 USA
[5] Univ Rochester, Med Ctr, Dept Psychiat, 601 Elmwood Ave, Rochester, NY 14642 USA