1. Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, PO Box 429 Corvallis, OR 97339–0429
2. Eastgate Veterinary Clinic, 33888 SE Peoria Rd., Corvallis, OR 97333
3. Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Oregon State University, PO Box 429 Corvallis, OR 97339–0429