title: Letter: Whence the calcitonin.
mesh_terms: D002116:Calcitonin / Q000378:metabolism*; D006651:Histocytochemistry; D006801:Humans; D013961:Thyroid Gland / Q000378:metabolism*; D015043:Zollinger-Ellison Syndrome / Q000503:physiopathology*
chemical_list: D002116:Calcitonin