Sartorelli P, Spagnolo V, Paltrinieri S, Giordano A, Comazzi S
Department of Animal Pathology, Hygiene and Public Health, Section of General Pathology and Parasitology, Faculty of Veterinary Medicine, University of Milan, Via Celoria, 10-20133 Milan, Italy.
Vet Res Commun. 2003 Sep;27 Suppl 1:723-6. doi: 10.1023/b:verc.0000014257.78724.3c.