1. Department of Large Animal Clinical Sciences; Marion DuPont Scott Equine Medical Center; Leesburg VA 20176
2. Department of Surgical and Radiological Sciences; School of Veterinary Medicine; University of California; Davis CA 95616
3. Department of Medicine and Epidemiology; School of Veterinary Medicine; University of California; Davis CA 95616
4. Department of Population Health and Reproduction; School of Veterinary Medicine; University of California; Davis CA 95616