1. Division of General Surgery, Department of Surgery, Stellenbosch University, Tygerberg Hospital, Cape Town
2. Division of Radiodiagnosis, Department of Medical Imaging and Clinical Oncology, Stellenbosch University and Tygerberg Hospital, Cape Town
3. Division of General Surgery, Department of Surgery, Stellenbosch University, Cape Town, South Africa
4. Division of Endocrinology, Department of Medicine, Stellenbosch University, Tygerberg Hospital, Cape Town, South Africa