[1] Univ Hosp Basel, Dept Clin Res, Div Clin Epidemiol, Basel, Switzerland
[2] Univ Basel, Basel, Switzerland
[3] Univ Maryland Coll Pk, Dept Psychol, College Pk, MD USA
[4] Weill Cornell Med, Dept Populat Hlth Sci, New York, NY USA
[5] Weill Cornell Med, Ctr Hlth Econ Treatment Intervent Subst Use Disord, New York, NY 10065 USA
[6] Univ Cape Town, Dept Psychiat & Mental Hlth, Div Neuropsychiat, HIV Mental Hlth Res Unit, Cape Town, South Africa
[7] Univ Copenhagen, Dept Publ Hlth, Global Hlth Sect, Copenhagen, Denmark
[8] Curtin Univ, Curtin enAble Inst, Fac Hlth Sci, Perth, WA, Australia
[9] South African Med Res Council, Mental Hlth Alcohol Subst Use & Tobacco Res Unit, Tygerberg, South Africa
[10] Univ Cape Town, Dept Psychiat & Mental Hlth, Div Addict Psychiat, Cape Town, South Africa
[11] Univ Miami, Dept Psychol, Coral Gables, FL USA
[12] Univ Maryland, Ctr Subst Use Addict & Hlth Res CESAR, College Pk, MD USA