title: Angiogram-negative subarachnoid hemorrhage: is it a correct definition?
authors.forename: Giovanni
authors.initials: G
authors.lastname: Sabatino
authors.forename: Giuseppe Maria
authors.initials: GM
authors.lastname: Della Pepa
authors.forename: Alessio
authors.initials: A
authors.lastname: Albanese
authors.forename: Enrico
authors.initials: E
authors.lastname: Marchese
mesh_terms: D000328:Adult; D002533:Cerebral Angiography / Q000379:methods; D003399:Craniotomy / Q000379:methods; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome