1. Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
2. Department of Radiation Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
3. Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
4. Hospital Office, Ganzhou Hospital‑Nanfang Hospital, Southern Medical University, Ganzhou, Jiangxi 341000, P.R. China