Supplementary Tables S1-S4 from The Proliferative Activity of Mammary Epithelial Cells in Normal Tissue Predicts Breast Cancer Risk in Premenopausal Women

The percentage of p27+ cells by breast tissue type (S1); The percentage of ER+ cells by breast tissue type (S2); The percentage of Ki67+ cells by breast tissue type (S3); Spearman correlations between markers in normal breast tissue in the Nurses' Health Study and the Nurses' Health Study II (S4).