1. Department of Large Animal Clinical Sciences Virginia‐Maryland College of Veterinary Medicine Virginia Tech Blacksburg VA USA
2. Laboratory for Study Design and Statistical Analysis Virginia‐Maryland College of Veterinary Medicine Virginia Tech Blacksburg VA USA
3. Department of Biomedical Sciences and Pathobiology Virginia‐Maryland College of Veterinary Medicine Virginia Tech Blacksburg VA USA
4. Maxwell Gluck Equine Research Center College of Agricultural and Veterinary Sciences University of Kentucky Lexington KY USA