1. Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
2. Honorary Research Associate: Health Economic Unit, University of Cape Town, Cape Town, South Africa
3. NMG Consultants and Actuaries, Cape Town, South Africa
4. Department of Obstetrics and Gynaecology, University of Cape Town, Cape Town, South Africa
5. Clinton Health Access Initiative, Pretoria, South Africa
6. Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa