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UFT: Tegafur-uracil; TS-1: tegafur, gimeracil, and oteracil potassium; XELOX: capecitabine and oxaliplatin; FOLFOX: bolus and infused fluorouracil with oxaliplatin. *Categorical variables are presented as proportions. †Categorical data were compared using the chi-square test or Fisher’s exact test.
