1. Pediatric Gastroenterology, Hepatology and Nutrition, Emma Children's Hospital Amsterdam University Medical Center University of Amsterdam Amsterdam the Netherlands
2. Department of Paediatric Gastroenterology Great Ormond Street Hospital for Children NHS Foundation Trust London UK
3. Department of Pediatric Surgery, New Children's Hospital University of Helsinki and Helsinki University Hospital Helsinki Finland
4. Pediatric Gastroenterology, Hepatology and Nutrition, Astrid Lindgren Children's Hospital, Karolinska University Hospital and Women's and Children's Health Karolinska Institutet Stockholm Sweden
5. Pediatric Surgery, University Medical Centre Mannheim University of Heidelberg Mannheim Germany
6. Pediatric Gastroenterology, Hepatology and Nutrition, Jeanne de Flandre Hospital Lille University Hospital Lille France
7. Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children University of Toronto Toronto Ontario Canada
8. Department of Pediatric Gastroenterology‐Hepatology‐Nutrition, Hôpital Necker‐Enfants Malades Université Paris Cité Paris France