Medical Oncologist in Private Practice at The Medical Oncology Centre of Rosebank and Private Oncology Clinical Trial Unit, Johannesburg, South Africa. Medical Oncologist at the Linksfield Park Hospital, Johannesburg, South Africa. Extraordinary Professor, Department of Immunology, Faculty of Health Sciences, University of Pretoria, South Africa. Post Graduate Examiner: Medical Oncology at the Collage of Medicine of South Africa. Professor Rapoport is a B2 rated scientist by the South African NRF (National Research Foundation of South Africa).