1. The School of Clinical Medicine, Fujian Medical University, Fuzhou, 350122, China
2. Department of Radiation Oncology, Xiamen Cancer Center, Xiamen Key Laboratory of Radiation Oncology, the First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China
3. Department of Radiation Oncology, Fudan University Shanghai Cancer Center (Xiamen Branch), Xiamen, 361027, China
4. Department of Obstetrics & Gynecology, the First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361003, China