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Meta-analysis results of neoadjuvant chemotherapy versus neoadjuvant chemoradiotherapy versus surgery alone for overall survival. A, Neoadjuvant chemotherapy versus surgery alone. B, Neoadjuvant chemoradiotherapy versus surgery alone. C, Neoadjuvant chemoradiotherapy versus neoadjuvant chemotherapy. The total number shown in the figure referred to number of patients with valid OS data. NCRT, neoadjuvant chemoradiotherapy; NCT, neoadjuvant chemotherapy; CI, confidence interval.
