1. Department of Public Health Medicine, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
2. Department of Anthropology and Development Studies, Faculty of Humanities and Social Sciences, University of Zululand, KwaDlangezwa, South Africa
3. Department of Behavioural Science, Medical and Health Sciences, Great Zimbabwe University, Masvingo, Zimbabwe
4. University of Malaga: Universidad de Malaga, Spain