1. From the Clinic of Companion Animals, Department of Clinical Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece (A.D., L.G.P., I.S., G.K., M.P., K.C., V.A., T.R.); Clinic of Surgery, School of Veterinary Medicine, University of Thessaly, Kardista, Greece (V.T.); and Goddard Veterinary Group, Surrey, United Kingdom (S.L.).