Funding for this research was provided by:
Raymond Firestone Trust Research Foundation
Received: 29 July 2020
Accepted: 2 December 2020
First Online: 5 January 2021
Ethics approval and consent to participate
: All procedures were approved by the University of Pennsylvania Institutional Animal Care and Use Committee (protocol #806644). University-owned horses were used in the study and owner consent to participate was not required.
: Not applicable.
: No competing interests have been declared.