1. Section of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Chicago, Chicago, Illinois2Section of Pediatric Gastroenterology, Department of Pediatrics, and Prince Abdullah Bin Khalid Celiac Disease Center, King Saud Uni
2. Section of Pediatric Gastroenterology, Department of Pediatrics, and Prince Abdullah Bin Khalid Celiac Disease Center, King Saud University Faculty of Medicine, and King Khalid University Hospital, Riyadh, Saudi Arabia