KwieciĆski, Janusz [Increased cerebrovascular reactivity and risk factors for ischaemic stroke in patients with inadequate circulation in the posterior circle of Willis]. [electronic resource] - Wiadomosci lekarskie (Warsaw, Poland : 1960) 2003 - 319-23 p. digital Publication Type: Journal Article ISSN: 0043-5147 Subjects--Topical Terms: AgedBlood Flow VelocityBrain--blood supplyBrain Ischemia--complicationsCase-Control StudiesCerebral Arteries--physiopathologyCerebrovascular CirculationCircle of Willis--diagnostic imagingFemaleHumansMaleMiddle AgedReference ValuesRisk AssessmentRisk FactorsStroke--diagnostic imagingUltrasonography, Doppler, TranscranialVertebral Artery--physiopathology