1. Department of Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, P.R. China
2. Department of Oncology, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, P.R. China
3. Department of Oncology, The School of Clinical Medicine, Guizhou Medical University, Guiyang, P.R. China
4. Department of Pathology, Affiliated Hospital of Guizhou Medical University, Guiyang, P.R. China
5. Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
6. Department of Physiology, The School of Basic Medicine, Guizhou Medical University, Guiyang, P.R. China
7. Clinical Research Center, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, P. R. China