Nat T. MesserFrom the Departments of Clinical Sciences (Messer) and Pathology (Arnold), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523.
Kristin ArnoldFrom the Departments of Clinical Sciences (Messer) and Pathology (Arnold), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523.