when the patients were divided in two groups on the basis of their reversible ( transitory ischemic attacks and unstable angina ) or irreversible ( stroke and myocardial infarction ) ischemic episodes , the levels of b beta 15-42 were significantly elevated only in the former group when compared to controls ( p less than 0.01 ) .
C0007787
transitory ischemic attacks
C0038454
stroke