1. Department of Clinical Sciences, College of Veterinary medicine, Cornell University, Ithaca, New York, USA.
2. McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
3. Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
4. Department of Population Medicine and Diagnostic Sciences, College of Veterinary medicine, Cornell University, Ithaca, New York, USA.