@CNN: Women who have given birth may have an increased breast cancer risk that continues for up to 23 years after their most recent childbirth, compared with women who haven’t done so, according to a new study https://t.co/vzX65UrtdX https://t.co/eQPacneTBX

Women who have given birth may have an increased breast cancer risk that continues for up to 23 years after their most recent childbirth, compared with women who haven't done so, according to a new study https://t.co/vzX65UrtdX pic.twitter.com/eQPacneTBX

— CNN (@CNN) December 11, 2018