1. Department of Animal Medicine; Faculty of Veterinary Sciences; University of Extremadura; Avenida Universidad s/n 10071 Caceres Spain
2. Small Animal Hospital and Langford Veterinary Diagnostics; Department of Clinical Veterinary Science; University of Bristol, Langford House; Langford Somerset BS40 5DU
3. Department of Critical Care; Clinical Hospital Virgen del Rocio; University of Sevilla, Avenida Manuel Siurot; 41013 Sevilla Spain