[1] Boston Med Ctr, Sect Infect Dis, 801 Massachusetts Ave, Boston, MA 02118 USA
[2] Univ Maryland, Dept Psychol, College Pk, MD 20742 USA
[3] Boston Univ, Dept Biostat, Boston, MA 02215 USA
[4] Boston Med Ctr, Sect Gen Internal Med, Boston, MA 02118 USA
[5] South African Med Res Council, Alcohol Tobacco & Other Drug Res Unit, Cape Town, South Africa
[6] Stellenbosch Univ, Dept Psychiat, Cape Town, South Africa
[7] Boston Univ, Dept Global Hlth, Boston, MA 02215 USA
[8] Boston Univ, Dept Epidemiol, Boston, MA 02215 USA
[9] Univ Cape Town, Dept Psychiat & Mental Hlth, Cape Town, South Africa