1. Department of Comparative Medicine, Stanford University, Stanford, California, USA
2. Bioresources Department, Henry Ford Health System, Detroit, Michigan, USA
3. Office of Research and Economic Development, University of California, Merced, California, USA
4. Animal Resources Authority, Murdoch, Australia
5. School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia, Australia
6. Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA