a clonidine suppression test and the measurement of the catecholamine ( noradrenaline and adrenaline ) concentration in 24-hour urine were undertaken on 13 patients with benign phaeochromocytoma ( pcc ) , 30 patients with benign hypertension ( bht ) and ten healthy , normotensive volunteers .
C0028351
noradrenaline
C0014563
adrenaline