1. Radiation Oncology Department, National Hospital Abuja, Abuja, Nigeria
2. College of Medicine, University of Abuja, Gwagwalada, Abuja, Nigeria
3. Project PINK BLUE—Health & Psychological Trust Centre, Abuja, Nigeria
4. Department of Sociology & Gerontology, Miami University, Oxford, OH
5. Scripps Gerontology Center, Miami University, Oxford, OH
6. Department of Psychology, University of Nigeria Nsukka, Enugu, Nigeria
7. Radiation and Clinical Oncology Department, National Hospital Abuja, Abuja, Nigeria
8. Neurosurgery Department, National Hospital Abuja, Abuja, Nigeria
9. Department of Radiology, National Hospital Abuja, Abuja, Nigeria
10. Medical Physics Department, National Hospital Abuja, Abuja, Nigeria
11. Radiotherapy Department, Asi Ukpo Comprehensive Cancer Center, Calabar, Nigeria
12. Radiation Oncology Department, Ahmadu Bello University Teaching Hospital (ABUTH), Zaria, Nigeria
13. Radiology Department, Gombe State University, Gombe, Nigeria
14. Department of Radiotherapy and Oncology, Federal Teaching Hospital Gombe, Gombe, Nigeria
15. Radiation Oncology Department, Nigeria Sovereign Investment Authority-Lagos University Teaching Hospital (NSIA-LUTH), Lagos, Nigeria
16. Radiation Oncology Department, University of Nigeria Teaching Hospital (UNTH), Ituku Ozalla, Enugu, Nigeria
17. University of Ibadan/University College Hospital Ibadan, Ibadan, Nigeria
18. Radiation Oncology Department, Usman Danfodio University Teaching Hospital (UDUTH), Sokoto, Nigeria
19. Radiation Oncology Department, University of Benin Teaching Hospital (UBTH), Edo State, Nigeria
20. Centre for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria
21. Nigeria Atomic Energy Commission (NAEC), Abuja, Nigeria
22. Radiology Department, University of Abuja Teaching Hospital (UATH), Gwagwalada, Abuja, Nigeria
23. University of Abuja Teaching Hosiptal (UATH), Gwagwalada, Abuja, Nigeria
24. International Cancer Expert Corps (ICEC) Inc, Washington, DC
25. University of Oxford, Oxford, United Kingdom
26. European Centre for Nuclear Research (CERN), Geneva, Switzerland