1 Department of Critical Care Medicine, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, China. mingqiang_wang@163.com.
2 Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou, China. mingqiang_wang@163.com.
3 Department of Critical Care Medicine, The First People's Hospital of Pinghu, Pinghu, China.