1. From the Department of Surgery (V.T., A.D.G., A.L., A.I.S.) and Department of Obstetrics and Reproduction (P.G.G.), Faculty of Veterinary Medicine, University of Thessaly, Karditsa, Greece; and the Department of Clinical Studies, Companion Animal Clinic (L.G.P.), and Laboratory of Pathology (D.P.), School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Th