Comparison of set-up errors detected by EPID and CBCT using two different immobilization techniques for patients with nasopharygeal carcinoma
LU Wei, XU Ting-ting, XU Qing, YING Hong-mei, HU Chao-su
China Oncology . 2014, (7): 535 -539 .  DOI: 10.3969/j.issn.1007-3969.2014.07.011