1. Department of Surgery and Specialties Faculty of Medicine and Biomedical Sciences University of Yaounde 1 Yaounde Cameroon
2. Department of Anesthesia and Intensive Care Yaounde Gyneco Obstetric and Pediatric Hospital Yaounde Cameroon
3. The Department of Anesthesiology Critical Care, and Pain Medicine Boston Children’s Hospital and Harvard Medical School Boston Massachusetts USA
4. Division of Paediatric Anaesthesia Department of Anaesthesia and Perioperative Medicine Red Cross War Memorial Children’s Hospital University of Cape Town Rondebosch South Africa
5. Division of Global Surgery Department of Surgery University of Cape Town Rondebosch South Africa