1. Department of Medical Oncology and Clinical Haematology, University of the Witwatersrand and Faculty of Medicine, Johannesburg, Republic of South Africa
2. Radiotherapy Unit, Northern Israel Oncology Centre, Rambam Medical Centre and Technion Faculty of Medicine, Haifa, Israel
3. Department of Medicine, University of the Witwatersrand and Faculty of Medicine, Johannesburg Academic Hospital, Johannesburg
4. Department of Radiation Therapy, Hillbrow Hospital, Johannesburg