Afrocentric Health Ltd and Discovery Health Medical Scheme; Discovery Health (Pty) Ltd; Retail Medical Scheme; Quantum Medical Aid Society; LA Health Medical Scheme; Lonmin Medical Scheme; Naspers Medical Fund; University of Kwazulu Natal Medical Scheme; Remedi Medical Aid Scheme; Anglo Medical Scheme; BMW Employees Medical Scheme; Malcor Medical Scheme; University of The Witwatersrand Johannesburg Staff Medical Aid Fund; Anglovaal Group Medical Scheme; Tsogo Sun Group Medical Scheme; TFG Medical Aid Scheme; Bankmed Medical Scheme