1. UCT/MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
2. MRC/Wits Developmental Pathways for Health Research Unit, Department of Pediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
3. Endocrine Unit, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
4. Diabetes and Vascular Medicine, University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon & Exeter NHS Foundation Trust, Exeter, United Kingdom.
5. South African Medical Research Council, Tygerberg, South Africa.
6. Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom.