Fig. 1From: Current smoking is associated with extracranial carotid atherosclerotic stenosis but not with intracranial large artery diseaserelationship between cigarette smoking the development of extracranial atherosclerotic stenosis (ECAS). The risk of ECAS increased steadily with longer time duration (a), larger amount of cigarette smoked per day (b), and larger number of pack years (c) of smokingBack to article page