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Clinical presentation of vertebrobasilar dolichoectasia: (A) clinical picture along with number and percentage of patients affected at initial diagnosis and during the course of chronic evolution of vertebrobasilar dolichoectasia (VBD). (B) Newly occurred or deteriorated symptoms at index admission, with number of patients and percentage referring to all patients with clinical change prior to SAH (n = 14). Only symptoms observed in at least 2 patients reported.
