Reproductive factors and risk of hormone receptor positive and negative breast cancer: a cohort study


The association of reproductive factors with hormone receptor (HR)-negative breast tumors remains uncertain. Within the EPIC cohort, Cox proportional hazards models were used to describe the relationships of reproductive factors (menarcheal age, time between menarche and first pregnancy, parity, number of children, age at first and last pregnancies, time… (More)
DOI: 10.1186/1471-2407-13-584


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