title: Letter: Ectopic production of calcitonin.
mesh_terms: D002116:Calcitonin / Q000096:biosynthesis / Q000378:metabolism*; D002283:Carcinoma, Bronchogenic / Q000378:metabolism* / Q000473:pathology; D006729:Hormones, Ectopic / Q000378:metabolism*; D006801:Humans; D008175:Lung Neoplasms / Q000378:metabolism* / Q000473:pathology; D008854:Microscopy, Electron; D009362:Neoplasm Metastasis; D013964:Thyroid Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: D006729:Hormones, Ectopic; D002116:Calcitonin