1 Department of Intensive Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
2 Department of Intensive Care Medicine, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China. drkaijiang@163.com.
3 Department of Intensive Care Medicine, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China. icuwanghongliang@163.com.
4 Department of Intensive Care Medicine, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China. changsongwangicu@163.com.