1. Faculty of Medicine, Catholic University of Bukavu, Bukavu, Democratic Republic of the Congo
2. Surgery Department, Provincial General Hospital of Bukavu, Bukavu, Democratic Republic of the Congo
3. Surgery Department, University Clinics of Bukavu, Official University of Bukavu, Bukavu, Democratic Republic of the Congo
4. Department of Radiology, Provincial General Hospital of Bukavu, Democratic Republic of the Congo
5. Nursing Sciences Section, Superior Institute of Medical Techniques of Bukavu, Bukavu, Democratic Republic of the Congo