1. Department of Surgery, University of California Davis, Sacramento, California, United States
2. Department of General Surgery, McGill University Health Centre, Montreal, Quebec, Canada
3. Department of Surgery, Université de Montréal, Montreal, Quebec, Canada
4. Department of Surgery Yale University, New Haven, Connecticut, United States
5. Department of Pediatric Surgery, Medical School Hannover, Hannover, Germany
6. Division of Paediatric Surgery, Department of Surgery, National Hospital, Abuja, Nigeria
7. Department of Surgery, University of California, San Diego, California, United States
8. Division of Pediatric General and Thoracic Surgery, The Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
9. Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
10. Department of Paediatric Surgery, University of Oxford, Oxford, United Kingdom
11. Department of Paediatric Surgery, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom