1. Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai Key Laboratory of Children's Digestion and Nutrition, Shanghai 200092, China
2. Department of Gastroenterology, Xinhua Hospital, Shanghai Jiaotong University School of medicine, Shanghai Key Laboratory of Children's Digestion and Nutrition, Shanghai 200092, Chile
3. Storr Liver Centre, The Westmead Institute for Medical Research The University of Sydney, Westmead, NSW 2145, Australia