Re‐evaluation of the prognostic significance of retropharyngeal node metastasis in nasopharyngeal carcinoma patients treated with intensity‐modulated radiotherapy. - Chen, Bijuan; Zhan, Zhouwei; Pan, Jianji; Xiao, Youping; Tang, Linbo; Guo, Qiaojuan; Xu, Yun; Zong, Jingfeng; Zhang, Ruiting; Xu, Hanchuan; Lin, Shaojun (Asia Pacific Journal of Clinical Oncology, 2022)