Ragaini L, Aste G, Cavicchioli L, Boari A
Department of Veterinary Clinical Sciences, Internal Medicine Section, School of Veterinary Medicine, University of Teramo, V.le Crispi 212, 64020, Teramo, Italy.
Vet Res Commun. 2003 Sep;27 Suppl 1:791-3. doi: 10.1023/b:verc.0000014273.80853.c1.