1. National Health Laboratory Service and Division of Anatomical Pathology Department of Pathology, Faculty of Medicine and Health Sciences Tygerberg Hospital and Stellenbosch University Cape Town South Africa
2. Division of General Surgery, Department of Surgery, Faculty of Medicine and Health Sciences Tygerberg Hospital and Stellenbosch University Cape Town South Africa
3. Division of Radiodiagnosis, Department of Medical Imaging and Clinical Oncology, Faculty of Medicine and Health Sciences Tygerberg Hospital and Stellenbosch University Cape Town South Africa