Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Chinese Academy of Medical Sciences - Hubei Provincial Clinical Research Center for Infectious Diseases, Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Tsinghua University - School of Medicine, Chinese Academy of Medical Sciences - Department of Pulmonary and Critical Care Medicine, Government of the People's Republic of China - Department of Pulmonary and Critical Care Medicine, Huazhong University of Science and Technology - Center for Translational Medicine and China-Japan Friendship Hospital - Department of Pulmonary and Critical Care Medicine