Original ResearchPublished 9 October 2026EQD2-adjusted mean lung dose and symptomatic pneumonitis after thoracic radiotherapy following immune checkpoint inhibitors in lung cancer: a single-center retrospective cohort studyXiqing Li · Libin Liu · Nuo Zheng · Nila Wang · Tingxiong Xiao · Xiaolong Lin · Haidun Chen · Qin Shi · Yuyin LeFrontiers in Oncologydoi 10.3389/fonc.2026.1923622