1. Department of Medicine (Hematology-Oncology), University of Pennsylvania, Philadelphia, PA
2. Department of Radiation Oncology, Erasmus Medical Center, Rotterdam, the Netherlands
3. Dana-Farber Cancer Institute, Boston, MA
4. University of Nairobi, Nairobi, Kenya
5. Queen's University Cancer Center of Southeastern Ontario, Kingston Health Science Center, Kingston, ON, Canada
6. Allina Health, St Paul, MN
7. African Organization for Research and Training in Cancer, Cape Town, South Africa
8. Division of Radiation Oncology, Medical Imaging and Clinical Oncology, Tygerberg Academic Hospital, Cape Town, South Africa
9. Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA
10. National Center for Radiotherapy and Nuclear Medicine, Korle-Bu Teaching Hospital, Accra, Ghana