Received: 6 December 2018
Accepted: 20 June 2019
First Online: 5 July 2019
: The animal experiments conducted in this study were carried out in accordance with national guidelines. All procedures, including consent from animal shelters to remove post-mortem samples, were approved by the Animal Care and Use Committee of the University of Missouri under the reference number EX-8383.
: Not applicable.
: The authors declare that they have no competing interests.