1. Department of Gastroenterology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
2. Department of Endocrinology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, P.R. China
3. Storr Liver Unit, Westmead Institute for Medical Research, The Westmead Clinical School, Westmead Hospital, The University of Sydney, Westmead, New South Wales 2145, Australia