during the trial period , transmural myocardial infarction developed in 9 ( 17 % ) out of 54 patients on placebo , 8 ( 13 % ) out of 60 on atenolol , 1 ( 2 % ) out of 51 on heparin , and 2 ( 4 % ) out of 49 on heparin and atenolol combined ( p = 0.024 ) .
C0027051
myocardial infarction
C0004147
atenolol