1. Department of Veterinary Medicine and Surgery, University of Missouri Veterinary Health Center, College of Veterinary Medicine, University of Missouri, Columbia, MO
2. Department of Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, QC, Canada
3. Office of Medical Research and Ellis Fischel Cancer Center, University of Missouri, Columbia, MO