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Figure 2: The concentrations of interleukin-1β, interleukin-6 and tumor necrosis factor-α in the supernatant by enzyme-linked immunosorbent assay. n = 5. *P < 0.05 versus control group; #P < 0.05 versus IAV group; PLD: Platycodin D; IAV: Influenza A virus (multiplicity of infection = 0.1). Data are expressed as the mean ± standard deviation |
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