[1] South African Med Res Council, Mental Hlth Alcohol Subst Use & Tobacco MAST Res U, Cape Town, South Africa
[2] Univ Cape Town, Dept Psychiat & Mental Hlth, Cape Town, South Africa
[3] Boston Coll, Chestnut Hill, MA USA
[4] Stellenbosch Univ, Inst Life Course Hlth Res, Dept Global Hlth, Stellenbosch, South Africa
[5] Stellenbosch Univ, Dept Psychiat, SAMRC Unit Risk & Resilience Mental Disorders, Stellenbosch, South Africa
[6] Harvard Med Sch, Dept Hlth Care Policy, Boston, MA USA