1. Laboratory of Molecular Diagnosis and Regenerative Medicine, the Affiliate Hospital of Qingdao University, Qingdao, P. R. China
2. Department of Neuroimmune and Antibody Engineering, Beijing Institute of Basic Medical Sciences, Beijing, P.R. China
3. School of Nursing, Jilin University, Changchun, P. R. China
4. Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing, P.R. China
5. Central Laboratory, Hebei Yanda Medical Research Institute, Sanhe, P. R. China