[1] Univ Ibadan, Coll Med, Dept Psychiat, Ibadan 200212, Oyo State, Nigeria
[2] Univ Ibadan, Coll Med, Ctr Child & Adolescent Mental Hlth, Ibadan 200212, Oyo State, Nigeria
[3] London Sch Hyg & Trop Med, Ctr Global Mental Hlth, Dept Populat Hlth, Keppel St, London WC1E 7HT, England
[4] Univ Zimbabwe, Fac Med & Hlth Sci, Res Support Ctr, Avondale, Harare, Zimbabwe
[5] Univ Makeni, Mental Hlth Dept, Lunsar Makeni Highway, Makeni, Sierra Leone
[6] Kamuzu Univ Hlth Sci, Dept Mental Hlth, P Bag 360, Blantyre, Malawi
[7] London Sch Hyg & Trop Med, Int Ctr Evidence Disabil, Dept Populat Hlth, Keppel St, London WC1E 7HT, England
[8] CBM Global Disabil Inclus, Dr Werner Freyberg Str 7, D-69514 Laudenbach, Germany