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PR expression at the mRNA (a); and protein (b); levels in immature female SD rats. ER α expression in immature female SD rats at the mRNA (c); and protein (d) levels. Findings presented in the bar graph are divided according to chemical administered and subdivided according to the presence or absence of ICI 182 780 (shown as ICI). a p < 0.05 versus vehicle, b p < 0.05 versus without ICI. Data are presented as the mean ± SD.
