1. School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, P.R. China
2. Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, P.R. China
3. Department of Pathology, School of Biology & Basic Medical Science, Soochow University, Suzhou 215123, P.R. China
4. Stem Cell Research Laboratory of Jiangsu Province, Suzhou 215007, P.R. China
5. Jiangsu Institute of Clinical Immunology, Suzhou 215007, P.R. China
6. Experimental Centre of Medical College, Soochow University, Suzhou 215123, P.R. China