Pawlik Timothy M, Cosgrove David
Department of Surgery, The Johns Hopkins University School of Medicine, Harvey 611, 600N Wolfe Street, Baltimore, MD 21287, USA.
J Gastrointest Surg. 2011 Mar;15(3):410-5. doi: 10.1007/s11605-011-1423-z. Epub 2011 Jan 21.