1. The Second Department of General Surgery, Key Laboratory of Biotherapy and Regenerative Medicine, First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
2. Pathology Department of Donggang Branch Courts, First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
3. Department of Heavy Ion Radiation Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, P.R. China