1 Division of Urology, Department of Surgery, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa; Division of Urology, Department of Surgery, Frere Hospital and Walter Sisulu University, East London, South Africa. Electronic address: [email protected].
2 Hillcrest Private Hospital, Durban, South Africa.
3 Division of Neurosurgery, Department of Surgery, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.
4 Division of Urology, Department of Surgery, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.