title: [Study on early breast cancer].
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001943:Breast Neoplasms; D002285:Carcinoma, Intraductal, Noninfiltrating; D005260:Female; D006801:Humans; D008413:Mastitis; D008875:Middle Aged; D011247:Pregnancy