1. Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R.�China
2. Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
3. Department of Hematology, Hechuan Hospital of The First Affiliated Hospital of Chongqing Medical University, Chongqing 401520, P.R.�China