1 Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
2 Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
3 Department of Critical Care Medicine, Hua Xin Hospital First Hospital of Tsinghua University, Beijing 100016, China.
4 Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
5 Department of Critical Care Medicine, Beijing Tongren Hospital, Beijing 100730, China.
6 Department of Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China.
7 Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, China.
8 Department of Critical Care Medicine, Rui Jin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
9 Department of Critical Care Medicine, The Third Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, China.