title: Double circle of the base: the unique variation of the circle of Willis anatomy.
authors.affiliation: Department of Anatomy, Jagiellonian University Medical College, Cracovia, Poland - mkh@onet.eu.
authors.forename: Monika
authors.initials: M
authors.lastname: Rybicka
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Wójtowicz
authors.forename: Aleksandra
authors.initials: A
authors.lastname: Wojnarska
authors.forename: Mateusz K
authors.initials: MK
authors.lastname: Holda
authors.forename: Mateusz
authors.initials: M
authors.lastname: Koziej
authors.forename: Wiesława
authors.initials: W
authors.lastname: Klimek-Piotrowska
mesh_terms: D002102:Cadaver; D002941:Circle of Willis / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008875:Middle Aged