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Kaplan-Meier curves of PFS of the ERCC1 gene rs11615 SNP in NSCLC 87 patients who received definitive radiotherapy. (A) PFS at allele gene level (P=0.040); (B) PFS at genotype level (P=0.019). PFS, progressive-free survival; SNP, single-nucleotide polymorphism; NSCLC, non-small cell lung cancer.
