1. Walter Sisulu University; Department of Obstetrics and Gynaecology, East London Hospital Complex; Private Bag X9047 East London South Africa 5200
2. University of the Witwatersrand, University of Fort Hare, Eastern Cape Department of Health; Department of Obstetrics and Gynaecology, East London Hospital Complex; Frere and Cecilia Makiwane Hospitals Private Bag X 9047 East London Eastern Cape South Africa 5200
3. Nelson Mandela Academic Hospital and Walter Sisulu University; Department of Obstetrics and Gynaecology; Mthanta South Africa