Dun-Chang Mo1, Lang Qin1, Lin-Jing Ye1. 1. Dun-Chang Mo, MD, Radiotherapy Department, the Third Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Lang Qin, MD, Guangxi Institute of Traditional Chinese Medicine & Pharmaceutical Science, Nanning, Guangxi, China; and Lin-Jing Ye, MD, Surgery and Anesthesia Department, the Affiliated Stomatological Hospital of Guangxi Medical University, Nanning, Guangxi, China.