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PFOS is associated with cardiac fibrosis and myocardiac hypertrophy in rats. (A) Masson staining and (B) wheat germ agglutinin staining of the rat hearts exposed to different doses of PFOS. Statistical graph of the (C) fibrosis area and the (D) cardiomyocyte cross-sectional area. White arrows point out Masson-positive regions (A magnification, x400; scale bars, 50 µm. B magnification, x200, scale bars, 100 µm). n=5. *P<0.05. PFOS, perfluorooctane sulfonate.
