Jixin Fan1, Runqing Lu1, Kun Yu2, Yinyin Zhang1, Fei He3, Rong Guo4. 1. Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China. 2. Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China. 3. Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China. fcchef2@zzu.edu.cn. 4. Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China. fccguor@zzu.edu.cn.