1. Department of Clinical Sciences; Section of Zoological Medicine; College of Veterinary Medicine; Cornell University; Ithaca; NY; USA
2. Department of Biomedical Sciences; Section of Anatomic Pathology; College of Veterinary Medicine; Cornell University; Ithaca; NY; USA
3. Department of Population Medicine and Diagnostic Sciences; Section of Clinical Pathology; College of Veterinary Medicine; Cornell University; Ithaca; NY; USA