EcEE interacts with BPA at reference level. (A) Cell viability after co-exposure to BPA (1 μg/ml) and distinct EcEE concentrations and subsequent 72 h recovery in standard medium. Results are presented as percentage over control, *p < 0.001. (B) Percentage of mitotic anomalies after 48 h culture in standard medium (control) or medium supplemented with ethanol (vehicle), BPA or EcEE at distinct concentrations in combination with BPA. The total number of mitotic cells scored and utilized to calculate the percentage of abnormal mitosis is shown in brackets.