Shum Dorothy J, Clifton Matthew S, Coakley Fergus V, Hornberger Lisa K, Joe Bonnie N, Goldstein Ruth B, Harrison Michael R
Department of Radiology, University of California San Francisco, Box 0628, M-372, 505 Parnassus Ave., San Francisco, CA 94143-0628, USA.
AJR Am J Roentgenol. 2007 Jan;188(1):W82-5. doi: 10.2214/AJR.05.0356.