Affiliation: | 1. Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China;2. Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China;3. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA;4. Department of Hepatobiliary Surgery, Renmin Hospital, Wuhan University, Wuhan, China |