1. Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
2. The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China
3. Department of Radiation Oncology, Gaozhou People's Hospital, Gaozhou 525200, China
4. Central Medical Laboratory, The Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China
5. School of Chinese Traditional Medicine, Southern Medical University, Guangzhou 510515, China