RT Journal Article SR Electronic T1 Optimal Preoperative Imaging of Spinal Cord Blood Supply JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1336 A1 R.J. Nijenhuis A1 W.H. Backes YR 2008 UL http://www.ajnr.org/content/early/2008/12/26/ajnr.A1336.abstract AB