1. Studio Veterinario Oculistico, Corso Galileo Ferraris 121; Torino 10128 Italy
2. Ambulatorio Veterinario Associato, Corso Traiano 99/d; Torino 10135 Italy
3. Department of Veterinary Sciences; University of Pisa, Via Livornese (lato monte); 56122 San Piero a Grado, Pisa Italy