1. Department of Infectious Disease Shandong Provincial Hospital affiliated to Shandong First Medical University Jinan Shandong China
2. Department of Infectious Disease, Cheeloo College of Medicine, Shandong Provincial Hospital Shandong University Jinan Shandong China
3. Division of Gastroenterology and Hepatology, Department of Medicine National University Hospital Singapore
4. Department of Medicine, Yong Loo Lin School of Medicine National University of Singapore Singapore
5. Division of Gastroenterology and Hepatology Stanford University Medical Center Stanford California
6. Division of Infectious Disease The Third People's Hospital of Shenzhen Shenzhen Guangdong China
7. Department of Internal Medicine, School of Medicine Shenzhen University Shenzhen Guangdong China
8. Lane Medical Library, School of Medicine Stanford University Stanford California
9. Division of Gastroenterology and Hepatology Veterans Affairs Palo Alto Health Care System Palo Alto California