RT Journal Article SR Electronic T1 Up and Down the Stairs with Dr. Shapiro JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 989 OP 991 DO 10.3174/ajnr.A2928 VO 33 IS 6 A1 Castillo, M. YR 2012 UL http://www.ajnr.org/content/33/6/989.abstract AB