1. Department of Experimental Hematology, Beijing Institute of Radiation Medicine, Beijing, P.R. China.
2. Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, P.R. China.
3. School of Nursing, Jilin University, Jilin, P.R. China.
4. Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China.