Cardiologist, Netcare Sunninghill and Sunward Park hospitals, Johannesburg, South Africa; School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; and Division of Cardiology, Charlotte Maxeke Johannesburg Academic Hospital, South Africa
F J Raal
Director, Carbohydrate and Lipid Metabolism Research Unit, University of the Witwatersrand, Johannesburg, South Africa; and Division of Endocrinology and Metabolism, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa