Larry P. Tilley, DVM Diplomate, American College of Veterinary Internal Medicine (Internal Medicine)President, VetMed ConsultantsChief Medical Officer, Dr. Tilley & Associates, Santa Fe, New Mexico, USA Francis W. K. Smith, Jr. DVMDiplomate, American College of Veterinary Internal Medicine (Internal Medicine & Cardiology)Vice-President, VetMed Consultants, Lexington, Massachusetts, USAClinical Assistant Professor, Department of Medicine, Tufts University School of Veterinary Medicine, North Grafton, Massachusetts, USA