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Receiver operating characteristic (ROC) curves of clinical and dosimetric factors, inflammation index, and complex for grade ≥2 RE. (A) ROC curves of NLR; (B) ROC curves of PLR; (C) ROC curves of RT dose; (D) T ROC curves of complex (NLR, PLR, and RT dose). RT, radiotherapy; NLR, neutrophils-lymphocyte ratio; PLR, platelets-lymphocytes ratio; RE, radiation esophagitis; FPR, false positive rate; TPR, true positive rate.
