1. Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
2. Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California
3. Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, California
4. Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
5. National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
6. Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
7. Division of Gastroenterology and Hepatology, Department of Medicine, National University Health System, Singapore
8. Department of Epidemiology and Population Health, Stanford University Medical Center, Palo Alto, California