1. Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Diseases Beijing Friendship Hospital, Capital Medical University BeijingChina
2. Liver Transplant Center, Clinical Center for Pediatric Liver Transplantation, National Clinical Research Center for Digestive Diseases Beijing Friendship Hospital, Capital Medical University BeijingChina
3. Clinical Epidemiology and Evidence Base Medicine Unit Beijing Friendship Hospital, Capital Medical University Beijing China
4. Department of Pathology and Molecular Medicine, Faculty of Health Sciences McMaster University Hamilton Ontario Canada
5. Department of Pathology and Laboratory Medicine, David Geffen School of Medicine/Ronald Reagan Medical Center University of California Los Angeles Los Angeles CA