the number of cardiac beta-adrenoceptors and the positive inotropic effect of isoprenaline and milrinone were measured in cardiac membranes and isolated , electrically driven muscle strips from nonfailing donor hearts and from patients with mitral valve disease ( nyha ii-iii ) , ischemic heart disease , and dilated cardiomyopathy ( nyha iv ) .
C0018787
cardiac
C0007193
dilated