title: Letter: Plasma-calcitonin and non-thyroid tumours.
mesh_terms: D001859:Bone Neoplasms / Q000097:blood; D001943:Breast Neoplasms / Q000097:blood; D002116:Calcitonin / Q000097:blood* / Q000378:metabolism; D018288:Carcinoma, Small Cell / Q000097:blood; D006729:Hormones, Ectopic / Q000378:metabolism; D006801:Humans; D008175:Lung Neoplasms / Q000097:blood; D009362:Neoplasm Metastasis; D009369:Neoplasms / Q000097:blood*; D009384:Paraneoplastic Endocrine Syndromes / Q000097:blood
chemical_list: D006729:Hormones, Ectopic; D002116:Calcitonin