the effects of phenylephrine ( in the presence of propranolol ) or isoprenaline and of adenosine or carbachol ( alone and in the presence of isoprenaline ) were studied on the force of contraction in electrically driven papillary muscles isolated from the hearts of cardiomyopathic ( strain bio 8262 ) and age-matched , healthy syrian hamsters .
C0018787
hearts
C0878544
cardiomyopathic