| Affiliation: | MRC Maternal and Infant Health Strategies Research Unit, Department of Obstetrics and Gynaecology, Kalafong Hospital and University of Pretoria, South Africa; Department of Obstetrics and Gynaecology, Kalafong Hospital and University of Pretoria, South Africa; Department of Obstetrics and Gynaecology, Pretoria Academic Hospital and University of Pretoria, South Africa; Department of Obstetrics and Gynaecology, University of Pretoria, South Africa; Department of Paediatrics, Kalafong Hospital and University of Pretoria, South Africa |
