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Fig 1. Flow chart of 298 patients with suggested ruptured intracranial aneurysm referred for cerebral angiography. Asterisk indicates no additional imaging because of advanced age in 4 and death soon after admission in 1. PMH indicates perimesencephalic hemorrhage; IPH, intraparenchymal hemorrhage; IVH, intraventricular hemorrhage; SDH, subdural hemorrhage.
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