1 Division of Gastroenterology, Hepatology and Nutrition, Aerodigestive Center, Boston Children's Hospital, Boston, MA.
2 Department of Pediatric Gastroenterology, Sydney Children's Hospital, Discipline of Pediatrics, School of Women's and Children's Health, University of New South Wales, Sydney, Australia.
3 Division of Pediatric Gastroenterology, Rady Children's Hospital, San Diego School of Medicine, University of California, San Diego, CA.
4 Digestive Endoscopy and Surgery Unit, Bambino Gesu Children's Hospital-IRCCS, Rome, Italy.
5 Division of Pediatric Gastroenterology, Department of Pediatrics, Sainte Justine Hospital, Université de Montréal, Montréal, Canada.
6 Department of Pediatric Gastroenterology Hepatology and Nutrition, University Lille, National Reference Center for Congenital Malformation of the Esophagus, Lille, France.