title: Grade IV and V arteriovenous malformations.
authors.forename: Charles
authors.initials: C
authors.lastname: Davis
mesh_terms: D001921:Brain / Q000098:blood supply* / Q000601:surgery*; D002543:Cerebral Hemorrhage / Q000209:etiology* / Q000601:surgery*; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000601:surgery*; D008297:Male; D012307:Risk Factors; D012720:Severity of Illness Index