title: Interference in radioimmunoassay of human calcitonin by vitamin C and urea.
mesh_terms: D000328:Adult; D001205:Ascorbic Acid / Q000097:blood*; D001667:Binding, Competitive; D002116:Calcitonin / Q000097:blood*; D002277:Carcinoma / Q000097:blood; D006801:Humans; D007676:Kidney Failure, Chronic / Q000097:blood; D011863:Radioimmunoassay; D013964:Thyroid Neoplasms / Q000097:blood; D014508:Urea / Q000097:blood*
chemical_list: D014508:Urea; D002116:Calcitonin; D001205:Ascorbic Acid