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Funnel plots for 1-, 2-, 3-, and 5-year OS rate, LRR, and DMR between CCRT-CCT group and CCRT alone group. OS, overall survival; LRR, local recurrence rate; DMR, distant metastasis rate; CCRT-CCT, concurrent chemoradiotherapy followed by consolidation chemotherapy; CCRT, concurrent chemoradiotherapy.
