Janse van Rensburg Pieter, Douis Hassan
Department of Diagnostic Radiology, Faculty of Health Sciences, University of Stellenbosch, PO Box 19063, Tygerberg 7505, South Africa.
Skeletal Radiol. 2008 Mar;37(3):259, 261-2. doi: 10.1007/s00256-007-0431-2.