title: Menstrual cycle and breast cancer.
authors.affiliation: Department of Surgery, Sinai Samaritan Medical Center, Milwaukee, Wisconsin 53201, USA.
authors.forename: W L
authors.initials: WL
authors.lastname: Donegan
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008597:Menstrual Cycle / Q000502:physiology*