Affiliation: | 1. Centre for Diabetes and Endocrinology, Johannesburg, South Africa;2. N1 City Medical Chambers, Goodwood, Cape Town, South Africa;3. Helderberg Clinical Trials Centre, Somerset West, South Africa;4. Life Chatsmed Garden Hospital and Nelson R Mandela School of Medicine, Durban, South Africa;5. Kuils River Netcare Hospital, Cape Town, South Africa. |