title: [Calcitonin concentration in the cerebrospinal fluid in patients with medullary thyroid carcinoma--passing of calcitonin through the blood-brain barrier].
mesh_terms: D000293:Adolescent; D000328:Adult; D001812:Blood-Brain Barrier; D002116:Calcitonin / Q000134:cerebrospinal fluid* / Q000378:metabolism; D002277:Carcinoma / Q000134:cerebrospinal fluid*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011863:Radioimmunoassay; D013964:Thyroid Neoplasms / Q000134:cerebrospinal fluid*
chemical_list: D002116:Calcitonin