title: Free or total metanephrines for diagnosis of pheochromocytoma: what is the difference?
authors.forename: G
authors.initials: G
authors.lastname: Eisenhofer
mesh_terms: D000310:Adrenal Gland Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000652:urine; D002395:Catecholamines / Q000097:blood / Q000652:urine; D006801:Humans; D008676:Metanephrine / Q000097:blood* / Q000652:urine; D010673:Pheochromocytoma / Q000097:blood / Q000175:diagnosis* / Q000652:urine; D011379:Prognosis; D013053:Spectrophotometry; D013431:Sulfates / Q000737:chemistry
chemical_list: D002395:Catecholamines; D013431:Sulfates; D008676:Metanephrine