Varoni M V, Palomba D, Gianorso S, Anania V
Department of Animal Biology, Section of Pharmacology, Faculty of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy.
Vet Res Commun. 2003 Sep;27 Suppl 1:807-10. doi: 10.1023/b:verc.0000014277.06785.6f.