the natural history and follow-up ( 5-7 years ) of 76 patients with transient ischemic attacks ( tia ) , 45 patients with protracted transient ischemic attacks ( ptia ) , 85 patients with minor strokes ( labelled as partial nonprogressing stroke ; pns ) has been studied with the purpose of a comparative evaluation , since tia , ptia and pns are often grouped together .
C0038454
stroke
C0007787
ptia