Bushnell David
Diagnostic Imaging Service, Iowa City VAMC, and Radiology Department, University of Iowa Hospital and Clinics, 200 Hawkins Drive, 3856 JPP, Iowa City, IA 52242, USA.
J Gastrointest Surg. 2006 Mar;10(3):335-6. doi: 10.1016/j.gassur.2005.08.025.