1. Department of Small Animal Clinical Sciences, University of Tennessee Veterinary Medical Center; Knoxville TN 37996 USA
2. Office of Information and Technology, University of Tennessee; Knoville TN 37996, USA
3. Veterinary Oncology Consultants; Lake Innes NSW 2446 Australia
4. Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee; VIC 3010 Australia
5. Hope Veterinary Specialists; Malvern PA 19355 USA
6. Department of Clinical Sciences; Oregon State University; Corvallis, OR 97331 USA
7. Seattle Veterinary Specialists; Kirkland WA 98034 USA
8. Veterinary Clinical Sciences Department; University of Minnesota College of Veterinary Medicine; St. Paul MN 55108 USA