1 Division of Urology, Department of Surgery, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
2 Departments of Urology, Charlotte Maxeke Johannesburg Academic Hospital (CMJAH), Helen Joseph Hospital (HJH), and Rahima Moosa Mother and Child Hospital (RMMCh), Johannesburg, South Africa.
3 Wits Donald Gordon Medical Centre, Johannesburg, South Africa.