Mian Peng1, Di Ren2, Xue-Yan Liu3, Jin-Xiu Li4, Rong-Lin Chen5, Bao-Jun Yu6, Yong-Feng Liu5, Xi Meng4, Yan-Si Lyu7. 1. Department of Intensive Care Unit, the Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, Guangdong Province, China. 2. Department of Intensive Care Unit, the Second People's Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China. 3. Department of Intensive Care Unit, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, the Second Affiliated Hospital of Jinan University, Shenzhen 518020, Guangdong Province, China. liuxueyan100916@163.com. 4. Department of Intensive Care Unit, the Third People's Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China. 5. Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen 518001, Guangdong Province, China. 6. Department of Intensive Care Unit, Shenzhen Baoan District People's Hospital, Shenzhen 518001, Guangdong Province, China. 7. Department of Dermatology, Shenzhen University General Hospital, Shenzhen 518067, Guangdong Province, China.