to study the role of intrinsic sympathomimetic activity ( isa ) in beta-blocker-induced changes of beta-adrenoceptors , the effects of administration of several beta-blockers for 9 days on lymphocyte beta 2-adrenoceptor density -- assessed by 125iodocyanopindolol binding -- were investigated in 47 normotensive volunteers .
C0034783
adrenoceptors
C0001643
beta