Affiliation: | 1. Department of pharmacology, faculty of veterinary science, universidad Austral de Chile, Valdivia, Chile;2. Department of clinical veterinary sciences, faculty of veterinary sciences, universidad Austral de Chile, Valdivia, Chile;3. College of veterinary medicine, universidad Católica de Temuco, Temuco, Chile;4. Department of immunology, faculty of medicine, universidad Austral de Chile, Valdivia, Chile |