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Early-life exposure to e-cigarette aerosols with nicotine decreases serum cytokine levels. A, Serum levels of IL-1β. B, Serum levels of IL-2. C, Serum levels of IL-6. All data are represented as mean values (n = 3–9) ± SEM. *Significantly different from filtered air control p < .05. $Difference from filtered air control (p < .1).
