Tumor grade in the prognosis of breast cancer.
D001943:Breast Neoplasms / Q000145:classification / Q000473:pathology*; D002277:Carcinoma / Q000145:classification / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D009362:Neoplasm Metastasis; D011379:Prognosis