1. Children’s Center for Digestive Healthcare, Atlanta, GA, USA;
2. Sapienza University of Rome, Department of Pediatrics, Gastroenterology, and Liver Unit, Rome, Italy;
3. Minnesota Gastroenterology PA, Saint Paul, MN, USA;
4. University Pediatric Associates Inc., Digestive Diseases and Nutrition Center, Buffalo, NY, USA;
5. Children’s Hospital of Western Ontario, Schulich School of Medicine, Department of Pediatrics, Western University, London, ON, Canada;
6. Department of Gastroenterology, Hepatology, and Feeding Disorders, Instytut Pomnik Centrum Zdrowia Dziecka, Warsaw, Poland;
7. Department of Pediatric Gastroenterology, Dr. von Hauner Children’s Hospital, Ludwig Maximilians University, Munich, Germany;
8. Department of Gastroenterology and Nutrition, Meyer Children’s Hospital, Florence, Italy;
9. AstraZeneca Gothenburg, Mölndal, Sweden