1 Department of Intensive Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China.
2 Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510655, Guangdong, China. biodegradation@gmail.com.
3 Department of Intensive Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China. icuwanghua@163.com.