Improper lung volume-dose parameters are risk factors for acute fatal radiation pneumonitis among esophageal cancer patients receiving chemoradiotherapy: a case-control study - Jia, Ruinuo; Li, Liuyan; Liu, Xiaoyi; Zhang, Junqian; Li, Shuoguo; Wang, Ziqi; Li, Jingxia; Xu, Bingyi; Sheng, Manxi; Ni, Lei; Yang, Danni; Gao, Shegan (Frontiers in Oncology, 2025)