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Detailed analysis of ERα and ERβ expression as indicated by immunofluorescent labeling. Cell nuclei positive for ERα, ERβ, or both were counted and the numbers were expressed as the percentage of total epithelial cell nuclei. Results are mean ± SD of three determinations for each of three individual tissues. Green bars indicate the percentage of cells expressing ERα, red bars indicate those expressing ERβ, and yellow bars indicate those expressing both receptors.
