1 Henan Provincial People's Hospital, International Medical Center of Henan, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou 450000, China.
2 Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China.
3 Department of Hematology, The First Affiliated Hospital of Xinxiang Medical College, Weihui 453100, China.
4 Department of Hematology, Huaihe Hospital of Henan University, Kaifeng 475000, China.