1. The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
2. Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
3. Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
4. Department of Critical Care Medicine, The Second Hospital of Dalian Medical University, Dalian, China
5. Clinical Research Center, Maoming People’s Hospital, Maoming, Guangdong, China