1. From the Service of Medical Genetics (E.M.) and Laboratory of Pharmacology and Toxicology (C.P.), Faculty of Veterinary Medicine, Pontifícia Universidade Católica do Paraná, Rua Imaculada Conceição, Curitiba, Paraná, Brazil (E.M.); Clínica Veterinária Pet House, Curitiba, Paraná, Brazil (J.W.); and Laboratory of Pathology, Faculty of Veterinary Medicine, FEPAR, Curitiba, Paraná, Brazil (S.C.).