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Effects of E2, DES and BPA on the cell proliferation in ERα-knockdown MCF-7 cells. The ERα-knockdown MCF-7 and empty vector-transfected MCF-7 were treated with the indicated concentration of (A) E2, (B) DES or (C) BPA for 96 h, and then the cell number was counted. Data are expressed as fold change from vehicle control. * P<0.05.
