title: Letter: Screening for medullary carcinoma of the thyroid.
mesh_terms: D001707:Biopsy, Needle; D002116:Calcitonin / Q000097:blood; D002118:Calcium; D002277:Carcinoma / Q000097:blood / Q000175:diagnosis* / Q000473:pathology; D002766:Cholecystokinin; D006801:Humans; D010418:Pentagastrin; D013960:Thyroid Function Tests; D013961:Thyroid Gland / Q000473:pathology; D013964:Thyroid Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000473:pathology
chemical_list: D002116:Calcitonin; D002766:Cholecystokinin; D010418:Pentagastrin; D002118:Calcium