1. Department of Veterinary Sciences, University of Messina, Via Palatucci, 98168 Messina, Italy
2. Veterinary Practitioner, 98100 Messina, Italy
3. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
4. Department of Human Pathology in Adult and Developmental Age, University of Messina, 98125 Messina, Italy