1. Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch 7600, Western Cape, South Africa
2. Division of Anatomical Pathology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch 7600, Western Cape, South Africa
3. National Health Laboratory Service, Tygerberg Hospital, Cape Town 7505, Western Cape, South Africa
4. Central Analytical Facilities, Fluorescence Microscopy Unit, Stellenbosch University, Stellenbosch 7600, Western Cape, South Africa
5. Department of Genetics, Faculty of Agrisciences, Stellenbosch University, Stellenbosch 7600, Western Cape, South Africa
6. Department of Psychiatry, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town 7505, Western Cape, South Africa
7. Department of Internal Medicine, University of Kentucky, Lexington, KY 40536, USA
8. Department of Internal Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town 7505, Western Cape, South Africa
9. Department of Global Health, African Cancer Institute (ACI), Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch 7505, Western Cape, South Africa