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mRNA expression patterns for 12 CYP enzymes between human primary hepatocytes (Hep, n = 3) and isolated alveolar epithelial type II cells (ATII, n = 8). n is the number of individuals. Each dot represents an individual and bars indicate the mean ± SEM. Two‐tailed unpaired t‐test was used for statistics. Open circles, never‐smokers; Closed squares, smokers without COPD
