Immunotherapy plus induction chemotherapy followed by radiotherapy alone or one cycle of concurrent chemotherapy with cisplatin vs induction chemotherapy followed by two cycles of concurrent chemotherapy with cisplatin in locoregionally advanced nasopharyngeal carcinoma. - Liang R; Li X; Zhu M; Lan F; Fu F; Lei L; Zou T; Ma L; Chen P; Luo L; Jin J; Zhang J (Frontiers in immunology, 2026)