1. Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
2. Department of Hematology, Linfen Central Hospital, Linfen, Shanxi 041099, P.R. China
3. Department of Pharmacology, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China