RT Journal Article SR Electronic T1 Derek F. C. Harwood Nash, MB, ChB, DSc, FRCPC, FACR, FC RAD (SA). JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1803 OP 1812 VO 18 IS 10 A1 M S Huckman YR 1997 UL http://www.ajnr.org/content/18/10/1803.abstract AB