1 Comparative Coagulation Section, Animal Health Diagnostic Center, Department of Population and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA.
2 Department of Population and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA.
3 Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA.
4 Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Auburn University, Auburn, Alabama, USA.