to study the relation of normetanephrine ( nm ) and metanephrine ( m ) to norepinephrine ( ne ) and epinephrine ( e ) , plasma free nm ( f-nm ) , free m ( f-m ) , total nm ( t-nm ) and total m ( t-m ) were measured in normal subjects and patients with pheochromocytoma ( pheo ) , neuroblastoma , cushing 's syndrome , primary aldosteronism and chronic renal failure ( crf ) by radioimmunoassay .
C0028351
norepinephrine
C0014563
epinephrine