1. Department of Molecular Biomedical Sciences, College of Veterinary Medicine, 1051 William Moore Drive, North Carolina State University, Raleigh, NC 27606, USA.
2. Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA.
3. Center for Comparative Medicine and Translational Research, North Carolina State University College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, USA.