1. Department of Pediatrics, Cincinnati Children's Hospital Medical Center University of Cincinnati College of Medicine Cincinnati Ohio USA
2. Division of Gastroenterology, Hepatology, and Nutrition The Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
3. Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Biostatistics and Epidemiology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
5. Division of Pediatric Gastroenterology, Hepatology and Nutrition Boston Children's Hospital Boston Massachusetts USA
6. Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Celiac Disease Center Stanford University, Lucile Packard Children's Hospital Palo Alto California USA
7. Division of Gastroenterology, Hepatology, and Nutrition, Children's National Hospital George Washington University School of Medicine Washington District of Columbia USA
8. Division of Pediatric Gastroenterology Hepatology and Nutrition, Mayo Clinic Rochester Minnesota USA
9. Department of Pediatrics, Section of Gastroenterology, Hepatology and Nutrition The University of Chicago Chicago Illinois USA
10. Department of Pediatrics, Harvard Medical School, Division of Pediatric Gastroenterology and Nutrition Mass General Hospital for Children Boston Massachusetts USA
11. Harvard Medical School, Center for Celiac Research and Treatment Massachusetts General Hospital Boston Massachusetts USA
12. Department of Pediatrics, Harvard Medical School, Harvard Celiac Research Program Boston Children's Hospital Boston Massachusetts USA
13. Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Division of Gastroenterology, Hepatology and Nutrition University of Cincinnati College of Medicine Cincinnati Ohio USA
14. Seattle Children's Hospital University of Washington School of Medicine Seattle Washington USA
15. Department of Pediatrics, Colorado Center for Celiac Disease, Digestive Health Institute, Children's Hospital Colorado University of Colorado Anschutz Medical Campus Aurora Colorado USA