Glutamine stabilizes intestinal permeability and reduces pancreatic infection in acute experimental pancreatitis - Foitzik,Th.; Stufler,M.; Hotz,H.G.; Klinnert,J.; Wagner,J.; Warshaw,A.L.; Schulzke,J.D.; Fromm,M.; Buhr,H.J. (J Gastrointest Surg, 1997)