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Severity of calcifications in vertebrobasilar arteries represented as calcium score (range 0–19) versus number of total vascular events on x-axis (prior stroke/TIA, index stroke, recurrent stroke/TIA, myocardial infarction, heart failure, peripheral arterial occlusive disease) in 448 patients hospitalized due to ischemic stroke and followed-up up to 7 years (Kruskal–Wallis P = 0.012).
