1. Division of Gastroenterology and Hepatology; Stanford University Medical Center; Palo Alto CA USA
2. Department of Cirrhosis; Institute of Liver Disease; Shuguang Hospital; Shanghai China
3. Stanford University; Palo Alto CA USA
4. David Geffen School of Medicine; University of California, Los Angeles; Los Angeles CA USA
5. Department of Epidemiology and Biostatistics; Zhejiang University; Hangzhou China
6. Department of Medicine; University of California, San Diego; San Diego CA USA
7. Center for Clinical Informatics; Stanford University School of Medicine; Palo Alto CA USA
8. Chinese Hospital; San Francisco CA USA