Rueca F, Porciello F, Conti M B, Marchesi M C
Department of Clinical Sciences, Section of Internal Medicine, Faculty of Veterinary Medicine, University of Perugia, Perugia, Italy.
Vet Res Commun. 2003 Sep;27 Suppl 1:437-9. doi: 10.1023/b:verc.0000014198.69275.67.