in a prospective study , platelet aggregation in platelet-rich plasma after adp stimulation ( 0.5 , 1.0 and 10 mumol/l ) and collagen ( 1 and 5 micrograms/ml ) was measured in 36 patients with coronary heart disease , 18 with angina at rest during the eight hours preceding the time of blood sampling , and 18 patients with stable , exercise-dependent angina , matched for age and sex .
C0002962
angina
C0340288
stable