1. From the Oncology Service, Dogwood Veterinary Emergency and Specialty Care, Richmond, Virginia (K.B.M.); College of Veterinary Medicine, University of Florida, Gainesville, Florida (A.L., A.S.); SAGE Centers for Veterinary Specialty and Emergency Care, Campbell, California (R.R.); and IVG (InTown Veterinary Group by Ethos), Portsmouth, New Hampshire (K.K.).