quantitative autoradiography was used to determine the location and density of beta 1- and beta 2-adrenoceptors in the right atrium ( ra ) , left ventricular free wall ( lvfw ) , right ventricular free wall ( rvfw ) , interventricular septum ( ivs ) , right atrium from an area near the atrioventricular node ( raav ) and cardiac nerves ( n ) taken from a patient with end-stage cardiac failure .
C0225844
right atrium
C0018787
cardiac