1. Fenestration of the anterior cerebral artery
2. The development of cranial arteries in the human embryo;Padjet;Contrib Embryol,1948
3. Fenestration of the basilar artery;Takahashi;Radiology,1973
4. Fenestration ofthe supraclinoid internal carotid artery with rupture of associated aneurysm;Yock;A J N R,1984
5. Variations in form of the circle of Willis;Riggs;Arch Neurol,1963