1. Faculty of Healthcare Sciences, University of Limpopo, Polokwane, South Africa
2. Department of Human Nutrition and Dietetics, University of Limpopo, Polokwane, South Africa
3. Department of Nursing, University of Limpopo, Polokwane, South Africa
4. Department of General Practice (S5), University of Antwerp, Wilrijk, Belgium
5. Department of Family Practice, University of Antwerp, Wilrijk, Belgium