1. Department of Surgery and Specialties, University of Yaoundé 1, Yaounde, Cameroon; Emergency Department, Laquintinie Hospital of Douala, Douala, Cameroon
2. Surgery Department, Edea Regional Hospital, Edea, Cameroon
3. Department of Surgery and Specialties, University of Yaoundé 1, Yaounde, Cameroon
4. Division of Scientific Research and Innovations, African Scientific Association for Innovative and Entrepreneurship (ASAIE), Dschang, Cameroon; Faculty of Engineering and Technology, University of Buea, Buea, Cameroon