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Cell count of CD4+T cells between the two groups. On POD 1, in both two groups, the count of CD4+T cells significantly descended (P < 0.05), while there was no difference between the two groups (P > 0.05). While on POD 4, the count of CD4+T cells was significantly higher in LCR group than OCR group (P < 0.05). On POD 7, the count of CD4+T cells rose to the preoperative level in both two groups.
