Mark A. Oyama, DVM, MSCE, DACVIM-Cardiology, is Professor at the Department of Clinical Sciences & Advanced Medicine, University of Pennsylvania School of Veterinary Medicine. He is also Associate Scholar, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania and Chief, Section of Cardiology, Veterinary Hospital of the University of Pennsylvania, School of Veterinary Medicine. He holds a Diploma from the American College of Veterinary Internal Medicine, Cardiology. Marc S. Krauz, DVM, DAVCIM-Cardiology/Internal Medicine, ECVIM-Cardiology, is Professor of Clinical Cardiology and Outpatient Medical Director at Ryan Hospital, University of Pennsylvania School of Veterinary Medicine. He is a Diplomate of the American College of Veterinary Internal Medicine (Internal Medicine, Cardiology) and a Diplomate of the European College of Veterinary Medicine (Companion Animals). Anna R. Gelzer, Dr.med.vet, PhD, DACVIM-Cardiology, ECVIM-Cardiology, is a Professor of Cardiology at the University of Pennsylvania School of Veterinary Medicine. She is a Diplomate of the European College of Veterinary Internal Medicine-Companion Animals (Cardiology), and of the American College of Veterinary Internal Medicine (Cardiology).