1. Muhimbili University of Health and Allied Sciences Department of Surgery, School of Medicine, , Dar es Salaam, Tanzania
2. Rabininsia Memorial Hospital Department of Clinical Oncology, , Dar es Salaam , Tanzania
3. University of Al-Azhar Faculty of Medicine, , Cairo , Egypt
4. Department of Surgery, Rangaraya Medical College , Kakinada , India
5. Catholic University of Bukavu Department of Surgery, School of Medicine, , Bukavu, South-Kivu, D.R . Congo
6. Makerere University College of Health Sciences, , Kampala , Uganda
7. University of Botswana School of Medicine, , Gaborone, Selebi Phikwe , Botswana
8. Lebanese University School of Medicine, , Beirut , Lebanon
9. Universitas Indonesia Faculty of Medicine, , Jakarta Pusat , Indonesia
10. Shanxi Medical University School of International Education, , Jinzhong, Shanxi , China
11. Copperbelt University School of Medicine, , Ndola , Zambia
12. University of Lagos College of Medicine, , Lagos , Nigeria
13. Alexandria University Faculty of Medicine, , Alexandria , Egypt
14. National Institute for Medical Research Genomics Department, , Dar es Salaam , Tanzania
15. Omdurman Islamic University Department of Histopathology and Cytology, , Khartoum , Sudan
16. Official University of Bukavu Faculty of Medicine, , Bukavu, South-Kivu, D.R . Congo
17. Xuzhou Medical University Department of Anatomy and Neurobiology, , Jiangsu , China
18. Muhimbili University of Health and Allied Sciences Department of Surgery, School of Medicine, , Dar es Salaam , Tanzania
19. Hawassa University Department of Critical Care and Emergency Medicine, , Awasa , Ethiopia
20. Department of Surgery, National Institute for Medical Research , Dar es Salaam , Tanzania
21. Muhimbili University of Health and Allied Sciences Department of Pathology, School of Medicine, , Dar es Salaam , Tanzania
22. Medical College of Wisconsin Department of Surgery, Division of Trauma and Critical Care, , Milwaukee, WI , USA