Breast Cancer Risk Tied to Pregnancy History Pooled analysis suggests parity may not be protective for women under age 55

https://www.medpagetoday.com/obgyn/breastcancer/76830?xid=nl_mpt_morningbreak2018-12-11&eun=g721819d0r&utm_source=Sailthru&utm_medium=email&utm_campaign=MorningBreak_121118&utm_term=NL_Daily_Morn_Break_Active