title: [Breast cancer at present and 30 years ago].
abstract: Comparison of the data on pathomorphosis of breast cancer and parameters of reproductive function of patients for 1983-1986 and 1953-1956 failed to establish increased aggressiveness of tumor during 30 years; however, the profile of factors influencing tumor development changed. At present, breast cancer is provoked by a longer and stronger estrogen stimulation; its duration has increased by 4.1 years which is an equivalent of more than 100 ovulatory cycles.
authors.forename: S A
authors.initials: SA
authors.lastname: Berzin
authors.lastname: ChernovaAS
authors.forename: D Iu
authors.initials: DIu
authors.lastname: Mel'nikov
authors.forename: L M
authors.initials: LM
authors.lastname: Masenina
authors.forename: I N
authors.initials: IN
authors.lastname: Fasakhov
mesh_terms: D000328:Adult; D000367:Age Factors; D001940:Breast / Q000473:pathology; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000473:pathology / Q000503:physiopathology; D005260:Female; D006801:Humans; D008572:Menarche; D008593:Menopause; D008875:Middle Aged; D010060:Ovulation; D011247:Pregnancy
vernacular_title: Rak molochnoĭ zhelezy v nastoiashchee vremia i 30 let nazad.