1. Department of Critical Care Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, China
2. Department of Critical Care Medicine, HUST Union Shenzhen Hospital (Nanshan Hospital), Shenzhen, Guangdong 518052, China
3. Department of Emergency Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080 Guangdong, China