title: Cooperative study of intracranial aneurysms and subarachnoid hemorrhage: a long-term prognostic study. I. Introduction.
mesh_terms: D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D011379:Prognosis; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis*