[Etiological analysis of spontaneous subarachnoid hemorrhage].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002533:Cerebral Angiography; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013129:Spinal Puncture; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis / Q000209:etiology*