surgical control material was taken from 18 open-chest animals maintained under anaesthesia for up to 6 h , autolysis control material from 10 excised normal hearts maintained at 37 degrees c in vitro for up to 4 h , and ischaemic material from 8 animals in which the septal and distal left circumflex coronary arteries were occluded for 15 min to 3 h .
C0018787
hearts
C3640672
distal left