Funding for this research was provided by:
Grayson-Jockey Club Research Foundation (')
American Association of Equine Practitioners Foundation (')
Churchill Downs (')
Del Mar Thoroughbred Club (')
Keeneland Racetrack (')
Kentucky Downs (')
The Stronach Group (')
New York Racing Association (')
Oak Tree Racing Association (')
Oaklawn Racetrack (')
the Thoroughbred Horseman's Association (')
the Washington State University College of Veterinary Medicine Equine Research Program. (')
Article History
Received: 9 April 2019
Accepted: 22 July 2019
First Online: 2 August 2019
Ethics approval and consent to participate
: This work was approved by the Institutional Animal Care and Use Committee at Washington State University.
: Not applicable.
: Dr. Bayly is a former member of the Board of Directors of the American Association of Equine Practitioners. Dr. Bayly is currently a member of the Grayson-Jockey Club Research Advisory Committee, but was not at the time of funding. The other authors have no conflicts of interest.