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World J Gastroenterol. Feb 14, 2007; 13(6): 901-905
Published online Feb 14, 2007. doi: 10.3748/wjg.v13.i6.901
Endoscopic sphincterotomy in patients with stenosis of ampulla of Vater: Three-year follow-up of exocrine pancreatic function and clinical symptoms
Nils Ewald, Axel Michael Marzeion, Reinhard Georg Bretzel, Hans Ulrich Kloer, Philip Daniel Hardt
Nils Ewald, Axel Michael Marzeion, Reinhard Georg Bretzel, Hans Ulrich Kloer, Philip Daniel Hardt, Third Medical Department and Policlinic, University Hospital Giessen and Marburg, Giessen Site, D-35392 Giessen, Germany
Author contributions: All authors contributed equally to the work.
Correspondence to: Dr. Nils Ewald, Third Medical Department and Policlinic, University Hospital Giessen and Marburg, Giessen Site, D-35392 Giessen, Germany. nils.ewald@innere.med.uni-giessen.de
Telephone: +49-641-9942751 Fax: +49-641-9942757
Received: November 13, 2006
Revised: November 27, 2006
Accepted: January 21, 2007
Published online: February 14, 2007
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