[On the problem of treatment of precancerous diseases of the breast].
D001940:Breast; D001943:Breast Neoplasms / Q000628:therapy*; D012739:Gonadal Steroid Hormones / Q000628:therapy*; D006801:Humans; D011230:Precancerous Conditions; D014801:Vitamin A / Q000628:therapy*
D012739:Gonadal Steroid Hormones; D014801:Vitamin A
BREAST NEOPLASMS/therapy; SEX HORMONES/therapy; VITAMIN A/therapy