title: Operative approaches to aneurysms.
mesh_terms: D001488:Basilar Artery; D002343:Carotid Artery, Internal; D002536:Cerebral Arteries; D002941:Circle of Willis; D006801:Humans; D002532:Intracranial Aneurysm / Q000601:surgery*; D008722:Methods; D008866:Microsurgery