the positive inotropic responses to isoprenaline , dobutamine , histamine , forskolin , isobutyl-methylxanthine ( ibmx ) , dibutyryl-cyclic adenosine monophosphate ( db-camp ) , ouabain and calcium were studied in isolated , electrically driven papillary muscle strips from either terminally failing human hearts or non-failing donor myocardium .
C0018787
hearts
C0027061
myocardium