Smith Martin, Johnston Brian, Wessells Hunter, Talner Lee
Department of Radiology, Harborview Medical Center, University of Washington School of Medicine, 325 Ninth Ave., Box 359728, Seattle, WA 98104-2499, USA.
AJR Am J Roentgenol. 2003 Feb;180(2):504. doi: 10.2214/ajr.180.2.1800504.