1. Department of Morphology; Faculty of Veterinary Science; University of Las Palmas de Gran Canaria; Trasmontania 35416 Arucas Las Palmas de Gran Canaria Spain
2. Department of Pathology; Faculty of Veterinary Science; University of Las Palmas de Gran Canaria; Trasmontania 35416 Arucas Las Palmas de Gran Canaria Spain
3. Department of Anatomy; Faculty of Veterinary Science; Campus University of Espinardo; 30100 Murcia Spain