title: Willisian collateralization.
authors.forename: Paulo
authors.initials: P
authors.lastname: Puglia
mesh_terms: D016893:Carotid Stenosis / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002941:Circle of Willis / Q000000981:diagnostic imaging*; D003097:Collateral Circulation; D003937:Diagnosis, Differential; D018450:Disease Progression; D006801:Humans; D020244:Infarction, Middle Cerebral Artery / Q000000981:diagnostic imaging*; D009072:Moyamoya Disease / Q000000981:diagnostic imaging