title: The significance of tumor marker assay in the staging of breast cancer. Assessment of ferritin and beta-HCG levels.
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000097:blood*; D002277:Carcinoma / Q000097:blood*; D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D005293:Ferritins / Q000097:blood*; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods*; D011863:Radioimmunoassay
chemical_list: D006063:Chorionic Gonadotropin; D005293:Ferritins