1. Department of Respiratory and Critical Care Medicine, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
2. Department of Intensive Medicine, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
3. Department of General Surgery, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China
4. Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, People’s Republic of China