1. The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
2. Department of Laboratory, Foshan Sanshui Hospital of Chinese Medicine, Foshan, Guangdong 528100, P.R. China
3. Division of Laboratory Science, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong 510095, P.R. China
4. Department of Radiotherapy, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China