1. Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology Nanfang Hospital, Southern Medical University Guangzhou Guangdong Province China
2. Celiac Disease Research Program, Harvard Medical School Boston Massachusetts USA
3. Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition Boston Children's Hospital Boston Massachusetts USA
4. Celiac Center, Beth Israel Deaconess Medical Center Boston Massachusetts USA
5. Guangdong Provincial Institute of Public Health Guangdong Provincial Center for Disease Control and Prevention Guangzhou Guangdong Province China