RT Journal Article SR Electronic T1 Role of Aqueductal CSF Stroke Volume in Idiopathic Normal-Pressure Hydrocephalus JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E26 OP E27 DO 10.3174/ajnr.A1943 VO 31 IS 2 A1 Algin, O. YR 2010 UL http://www.ajnr.org/content/31/2/E26.abstract AB