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Epithelial‐mesenchymal transition (EMT) induced by TGF‐β1 in gastric SGC7901 cells. A, EpCAM and Vimentin expression in SGC7901 cells treated with TGF‐β1 at concentrations of 5, 10, and 20 ng/mL for 72 h. B, EMT induced by TGF‐β1 (20 ng/mL) in SGC7901 cells treated for 72 h. Scale bar = 50 μm. *P < .05, **P < .01
