Christophe Faure, MD, Professor of Pediatrics, Université de Montréal, Division of Pediatric Gastroenterology, Ste. Justine Hospital, Montréal, QC, Canada Nikhil Thapar, MD, Honorary Consultant in Paediatric Gastroenterology, Division of Neurogastroenterology and Motility, Department of Gastroenterology, Great Ormond Street Hospital, London, UK Carlo Di Lorenzo, MD, Robert F. and Edgar T. Wolfe Foundation, Endowed Chair in Pediatric Gastroenterology, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Nationwide Children’s Hospital, Columbus, OH, USA