resting and postvenous occlusion tissue-type plasminogen activator ( t-pa ) activity , resting t-pa antigen , and resting plasminogen activator inhibitor 1 ( pai-1 ) activity were measured in the morning and evening in 33 healthy men ( mean age , 31 years ) and in 15 patients ( mean age , 57 years ) with previous myocardial infarction or unstable angina .
C0032143
tissue-type plasminogen activator
C0027051
myocardial infarction