Daniels D L, Mallisee T A, Erickson S J, Boynton M D, Carrera G F
Department of Radiology, Froedtert Memorial Lutheran Hospital and Medical College of Wisconsin, Milwaukee 53226, USA.
Radiographics. 1998 Jan-Feb;18(1):229-36. doi: 10.1148/radiographics.18.1.9460127.