Peli A, Scagliarini A, Britti D, Boari A
Department of Veterinary Clinical Sciences, Internal Medicine Section, Faculty of Veterinary Medicine, University of Bologna, Italy.
Vet Res Commun. 2003 Sep;27 Suppl 1:779-81. doi: 10.1023/b:verc.0000014270.09837.0b.