In vivo utilization of a glutamine-containing synthetic dipeptide alanyl-glutamine (Ala-Gln) in dogs : I. Amberger, E. Roth, J. Karner, J. Hanusch, P. Fürst (I. Dept. of Surgery, Vienna, Austria; Inst. for Biol. Chem. and Nutr., Univ. of Hohenheim, FRG)