1. Department of Large Animal Clinical Sciences University of Tennessee College of Veterinary Medicine Knoxville TN USA
2. Department of Surgical and Radiological Sciences University of California Davis California USA
3. School of Veterinary Medicine University of California at Davis California USA
4. Penumbra Inc, One Penumbra Place Alameda California USA
5. Department of Pathology, Microbiology and Immunology University of California at Davis California USA