fifty-five per cent ( 73/133 ) of myocardial infarction ( mi ) patients on cape cod during a three-month period reached the hospital by ambulance . the 45 per cent ( 60/133 ) not using ambulances were compared to users to identify a subpopulation to which public health programs might be directed to increase appropriate use of cardiac ambulances .
C0027051
myocardial infarction
C0018787
cardiac