title: Immunochemical heterogeneity of calcitonin in tumor, tumor venous effluent, and peripheral blood of patients with medullary thyroid carcinoma.
mesh_terms: D000328:Adult; D000368:Aged; D002116:Calcitonin / Q000097:blood / Q000276:immunology*; D002277:Carcinoma / Q000276:immunology*; D002850:Chromatography, Gel; D006801:Humans; D008297:Male; D010418:Pentagastrin / Q000494:pharmacology; D013964:Thyroid Neoplasms / Q000276:immunology*
chemical_list: D002116:Calcitonin; D010418:Pentagastrin