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American Journal of Surgery|January 1, 1986
Preoperative endoscopic retrograde cholangiopancreatography in the surgical management of pancreatic pseudocystsM O'Connor, J Kolars, H Ansel, et al.
The American Journal of Gastroenterology|April 1, 1980
Simultaneous ulcerative colitis and Crohn's disease. Report of a caseS Eyer, C Spadaccini, P Walker, et al.
The American Journal of Gastroenterology|March 1, 1989
Pancreatic pseudocysts: clinical and endoscopic experienceJ C Kolars, M O Allen, H Ansel, et al.
The New England Journal of Medicine|June 15, 2000
A comparison of colonoscopy and double-contrast barium enema for surveillance after polypectomy. National Polyp Study Work GroupS J Winawer, E T Stewart, A G Zauber, et al.
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