1. Department of Graduate School, Hebei North University, Zhangjiakou, Hebei 075132, P.R. China
2. Department of Hematology, Hebei Province Hospital of Chinese Medicine, Shijiazhuang, Hebei 050013, P.R. China
3. Department of Pathology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
4. Department of Nuclear Medicine, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
5. Department of Hematology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China