1. Department of Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
2. Department of Child Health Care, Guangzhou Women and Children’s Medical Center, Guangzhou, China
3. Department of Critical Care Medicine, Xinjiang Kashgar Region’s First People’s Hospital, Kashgar, China
4. Department of Critical Care Medicine, Guangzhou Nansha Central Hospital, Guangzhou, China
5. Department of Critical Care Medicine, Xiaolan People’s Hospital of Zhongshan, Zhongshan, China
6. Department of Critical Care Medicine, Guangzhou Red Cross Hospital, Guangzhou, China