1. Africa Health Research Institute, Mtubatuba, South Africa
2. London School of Hygiene and Tropical Medicine, London, United Kingdom
3. School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
4. Institute for Global Health, University College London, London, United Kingdom
5. Department of Psychiatry, Harvard Medical School, Massachusetts General Hospital, Boston, USA
6. Independent Consultant, Polokwane, South Africa