plasma epinephrine ( epi ) , norepinephrine ( ne ) , beta-endorphin , and corticotropin ( acth ) responses were measured during insulin-induced hypoglycemia in normal subjects and in patients with either multiple system atrophy ( msa ) or idiopathic orthostatic hypotension ( ioh ) .
C0014563
epinephrine
C0028351
norepinephrine