title: An epidemiologic study of breast cancer.
mesh_terms: D000328:Adult; D000367:Age Factors; D001942:Breast Feeding; D001943:Breast Neoplasms / Q000235:genetics / Q000635:transmission*; D002140:California; D036861:Delivery, Obstetric; D048909:Diabetes Complications; D005260:Female; D006728:Hormones / Q000009:adverse effects; D006801:Humans; D007044:Hysterectomy; D007774:Lactation; D008324:Mammary Tumor Virus, Mouse; D008572:Menarche; D008593:Menopause; D008875:Middle Aged; D008895:Milk, Human / Q000382:microbiology*; D011247:Pregnancy; D012189:Retrospective Studies
chemical_list: D006728:Hormones