[1] Univ Southern Calif, Inst Addict Sci, Dept Populat & Publ Hlth Sci, Los Angeles, CA USA
[2] Boston Univ, Dept Epidemiol, Sch Publ Hlth, Boston, MA USA
[3] Boston Univ, Sch Publ Hlth, Dept Global Hlth, Boston, MA USA
[4] Boston Univ, Sch Med, Dept Med, Boston, MA 02118 USA
[5] Boston Med Ctr, Boston, MA USA