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Comparison of QoR-15 scores in four groups; *p < 0.05, four groups vs. D0; **p < 0.05, groups C and D vs. D0; ^p < 0.05, groups C, P, and B vs. D1; #p < 0.05 vs. group C; ##p < 0.05, groups P and B vs. group BP; &p < 0.05, groups C and P vs. group B
