1. Department of Surgery, Faculty of Medicine, St Francis Referral and Teaching Hospital, Ifakara, Morogoro, Tanzania
2. Department of Pathology, Mitokiti Histopathology Diagnostic Center, Dar es Salaam, Tanzania
3. Department of Pathology, Makerere University, School of Biomedical Sciences, Kampala, Uganda
4. Department of Biomedical Science, College of Health Sciences (CHS), University of Dodoma, Dodoma, Tanzania