Ahn, H S Extra- to intracranial arterial anastomoses in therapeutic embolization: recognition and role. [electronic resource] - AJNR. American journal of neuroradiology - 71-5 p. digital Publication Type: Case Reports; Journal Article ISSN: 0195-6108 Subjects--Topical Terms: AdolescentAgedCerebral AngiographyCerebral RevascularizationChild, PreschoolCollateral CirculationEmbolization, TherapeuticFemaleHead--blood supplyHumansMaleMiddle AgedNeck--blood supplyVertebral Artery--anatomy & histology