seventy-eight patients admitted with their first cerebrovascular episode of presumed ischemic origin were evaluated during the first 24 hours to decide whether the differential diagnosis of stroke versus transient ischemic attacks ( tias ) could be made earlier than after 24 hours , if the initial degree of neurologic deficit and the persistence of symptoms beyond a certain limit of time were taken into account .
C0038454
stroke
C0007787
transient ischemic attacks