RT Journal Article SR Electronic T1 The Promise of High-Field-Strength MR Imaging JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1738 OP 1739 VO 24 IS 9 A1 Joseph A. Helpern YR 2003 UL http://www.ajnr.org/content/24/9/1738.abstract AB