we used a radioenzymatic method to determine plasma levels of free and total ( free plus sulfoconjugated ) norepinephrine and dopamine in 20 children with neuroblastoma ( two were hypertensive ) , seven patients with pheochromocytoma , and 39 normotensive controls ( 24 children and 15 adults ) .
C0013030
dopamine
C0031511
pheochromocytoma