Prof Carlos E. Lanusse EBVS® European Specialist in Veterinary Pharmacology and Toxicology Member of European College of Veterinary Pharmacology and Toxicology clanusse@vet.unicen.edu.ar Universidad Nacional del Centro de la Prov. De Buenos Aires Campus Universitario Lab Farmacologia - Fac. Sci.Veterinarias Tandil 7000 Argentina