1. School of Clinical Medicine, College of Health Sciences, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
2. Faculty of Podiatric Medicine, Royal College of Physicians and Surgeons, Glasgow, Scotland
3. Department of Surgery, Greys Hospital, Pietermaritzburg, South Africa
4. Department of Surgery, University of the Witwatersrand, Johannesburg, South Africa