the incidence of myocardial infarction was significantly reduced in the groups receiving aspirin ( 3 percent ; p = 0.01 ) , heparin ( 0.8 percent ; p less than 0.001 ) , and aspirin plus heparin ( 1.6 percent , p = 0.003 ) , and no deaths occurred in these groups .
C0027051
myocardial infarction
C0019134
heparin