Department of Gastroenterology, General Hospital of Northern Theater Command (formerly called General Hospital of Shenyang Military Area), Shenyang, China. Liver Research Center, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China. State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing, China. Department of Hepatobiliary Disease, 900 Hospital of the Joint Logistics Team (formerly Called Fuzhou General Hospital), Fuzhou, China. Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China. Department of Critical Care Medicine, The Sixth People's Hospital of Shenyang, Shenyang, China. Department of Biological Therapy, The Fifth Medical Center of PLA General Hospital, Beijing, China. Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China. Department of Gastroenterology, The First Affiliated Hospital of China Medical University, Shenyang, China. Department of Gastroenterology, General Hospital of Western Theater Command, Chengdu, China. Department of Gastroenterology, Xi'an Central Hospital, Xi'an, China. Department of Gastroenterology, Air Force Hospital of Northern Theater Command, Shenyang, China.