title: The sonographic pitfall of carotid collateralisation via the vasa vasorum.
authors.affiliation: Department of Neuroradiology, Hospital de S Marcos, Braga, Portugal.
authors.forename: João P
authors.initials: JP
authors.lastname: Soares-Fernandes
authors.forename: Manuel
authors.initials: M
authors.lastname: Ribeiro
authors.forename: Zita
authors.initials: Z
authors.lastname: Magalhães
authors.forename: Jaime F
authors.initials: JF
authors.lastname: Rocha