1. Department of Gastroenterology & Hepatology and Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology & Metabolism Amsterdam University Medical Centers Amsterdam the Netherlands
2. Division for Pediatric Gastroenterology and Hepatology, Department of Pediatric Kidney, Liver, and Metabolic Diseases Hannover Medical School Hannover Germany
3. Laboratoire de Génétique Humaine, Faculté de Médecine de Tunis (Laboratory of Human Genetics, Faculty of Medicine of Tunis Université de Tunis El Manar (University of Tunis El Manar) Tunis Tunisia
4. Service des Maladies Congénitales et Héréditaires (Department of Hereditary and Congenital Disorders) Hôpital Charles Nicolle (Charles Nicolle Hospital) Tunis Tunisia
5. Department of Hereditary Diseases of Hepatic Metabolism Hôpital Antoine Béclère Clamart France
6. Clinic for Special Children Strasburg Pennsylvania USA
7. Department of Pediatrics Sidney Kimmel Medical College at Thomas Jefferson University Philadelphia Pennsylvania USA
8. Department of Gastroenterology and Hepatology Erasmus University Medical Center, Sophia Children's Hospital Rotterdam the Netherlands
9. Department of Pediatric Gastroenterology Erasmus University Medical Center, Sophia Children's Hospital Rotterdam the Netherlands
10. Department of Translational Medicine Federico II University of Naples Naples Italy
11. Third Military Medical University Chongqing China
12. Department of Pediatric Gastroenterology Baskent University Faculty of Medicine Ankara Turkey
13. Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular‐Cellular Sciences Institute Tehran University of Medical Sciences Tehran Iran
14. Health research Institute, Research Center of Thalassemia & Hemoglobinopathy Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran
15. Department of Pediatrics and Pediatric Hepatology, Faculty of Medicine Cairo University Cairo Egypt
16. Paediatric Gastroenterology and Nutrition Shaare Zedek Medical Center Jerusalem Israel
17. Department of Paediatric Gastroenterology Azienda Ospedaliera Papa Giovanni XXIII Bergamo Italy
18. Spark Therapeutics Philadelphia Pennsylvania USA
19. Telethon Institute of Genetics and Medicine Pozzuoli Italy
20. Departments of Pediatrics and Molecular, Cell & Cancer Biology University of Massachusetts School of Medicine Worcester Massachusetts USA