Elective nodal irradiation versus involved-field irradiation for stage II–IV cervical esophageal squamous cell carcinoma patients undergoing definitive concurrent chemoradiotherapy: a retrospective propensity study with 8-year survival outcomes. - Wang, Jianing; Wu, Yajing; Zhang, Wei; Chen, Yujia; Liu, Qing; Jing, Shaowu; Zhang, Jiandong; Wu, Fengpeng; Wang, Jun; Qiao, Xueying (Radiation Oncology, 2023)