1. Lab of Cellular Oncology, CCR, NCI, NIH, Bethesda, Maryland, USA
2. Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, and Warnell School of Forestry and Natural Resources, University of Georgia, Athens, Georgia, USA
3. School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
4. Department of Pathology, UC Davis School of Veterinary Medicine, Davis, California, USA