Oestrogen exposure and breast cancer risk.

Breast Cancer Res · 2003 · PMC314432 · PMID 12927032

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The sentences

highly significantno p-value reported

A recent pooled analysis of nine prospective studies in postmenopausal women, including 663 breast cancer cases, found a highly significant increase in breast cancer risk with increasing concentrations of oestradiol, free oestradiol and oestrone in the blood [ 2 ].

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