Affiliation: | (1) Department of Surgery, Rijnland Hospital, Simon Smitweg 2, P.O. Box 2321 GA, Leiderdorp, The Netherlands;(2) Department of Radiology, Rijnland Hospital, Simon Smitweg 2, Leiderdorp, The Netherlands;(3) Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands |