3Schutte S J, Baron R L, Freeny P C, et al. Root of the superior m esenteric artery in pancreatic carcinoma: evaluation with CT. Radiology, 1991,180:659.
4Megibow A J, Zhou XH, Rotterdam H, et al. Pancreatic adenocare inoma: CT versus MR imaging in the evaluation of resectability-report of the radiology diagnostic ontology group. Radiology, 1995,195:327.
