1. Department of Oncology, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou 510700, China
2. Department of Oncology, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, China
3. Department of Central Laboratory, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou 510700, China
4. Department of Gynaecology, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou 510700, China