2.3. Treatment Procedure
The eligible patients were randomly classified (in a ratio of 1:1) into two groups: the Placebo group and the Probio group, after receiving surgical resection treatment. Patients in the Probio group were instructed to take probiotic tablets orally according to the scheme 1 × 3 tablets (one capsule at a time and three times per day) from the third postoperative day to the end of the first chemotherapy course (Capecitabine 