title: Letter: High plasma calcitonin levels in breast cancer.
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000097:blood*; D002116:Calcitonin / Q000097:blood*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009362:Neoplasm Metastasis
chemical_list: D002116:Calcitonin