Mohit A Alex, Schuster James A, Mirza Sohail K, Mann F A
Department of Neurological Surgery, Harborview Medical Center, University of Washington School of Medicine, 325 Ninth Ave., Box 359728, Seattle, WA 98104, USA.
AJR Am J Roentgenol. 2003 Sep;181(3):770. doi: 10.2214/ajr.181.3.1810770.