1. Neurogastroenterology & Motility Unit Gastroenterology DepartmentGreat Ormond Street Hospital for Children London UK
2. Division of Gastroenterology and Hepatology Department of Pediatrics Faculty of Medicine Prince of Songkla University Songkhla Thailand
3. Stem Cells and Regenerative Medicine UCL Great Ormond Street Institute of Child Health London UK
4. Histopathology Department Great Ormond Street Hospital for Children London UK
5. Gastroenterology, Hepatology and Liver Transplant Queensland Children’s Hospital Brisbane Queensland Australia