1. Veterinary Teaching at the Rof Codina University Veterinary Hospital, Faculty of Veterinary Medicine, University of Santiago de Compostela Lugo Spain
2. Department of Anatomy, Animal Production and Veterinary Clinical Sciences Faculty of Veterinary Medicine University of Santiago de Compostela, Lugo, Spain
3. Diagnostic Imaging Service, Rof Codina University Veterinary Hospital, Faculty of Veterinary Medicine, University of Santiago de Compostela Lugo Spain