Treatment and clinical outcomes among stage II–IVA nasopharyngeal carcinoma patients with undetectable pretreatment Epstein-Barr viral DNA - Ci-ming Sun; Zhen Xu; Cheng-hao Li; Jun-xiang Chen; Xin-yi Su; Jing-xia Song; Shuang-hong Song; Qing-qing Xu; Yan-Ling Wu (Frontiers in Medicine, 2026)