1. Medical Research Council in Cape Town, South Africa
2. Division of Nutrition and Dietetics, School of Health and Rehabilitation, Faculty of Medicine, University of Cape Town and Chronic Diseases of Lifestyle Unit, Medical Research Council, Parow, South Africa
3. School of Dietetics and Human Nutrition at McGill University in Montreal, Canada
4. School of Dietetics and Human Nutrition at McGill University, Montréal, Canada