1. Department of Laboratory Medicine, West China Hospital; Sichuan University; Chengdu P.R. China
2. Department of Emergency and Critical Care Medicine; First Affiliated Hospital of Chongqing Medical University; Chongqing P.R. China
3. Department of Laboratory Medicine; Affiliated Hospital & Clinical Medical College of Chengdu University; Chengdu P.R. China
4. Department of Respiratory and Critical Care Medicine, West China Hospital; Sichuan University; Chengdu P.R. China