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Effect of PMR on spleen index, thymus index, phagocytic index, and lymphocyte proliferation of immunodeficient mice. I: Blank; II: Model group; III: PMR + CY group (80 mg/kg); IV: PMR + CY group (160 mg/kg); V: PMR + CY group (320 mg/kg). A–D, a–dThe different superscript letters in bars mean significant differences between different treatment groups (p < 0.05)
