title: Discordance between plasma calcitonin and tumor-cell mass in medullary thyroid carcinoma.
mesh_terms: D002116:Calcitonin / Q000032:analysis / Q000097:blood*; D002277:Carcinoma / Q000032:analysis / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D013964:Thyroid Neoplasms / Q000032:analysis / Q000378:metabolism / Q000473:pathology*
chemical_list: D002116:Calcitonin