Nicholas, Frank W.
Mellersh, Cathryn
Lewis, Tom
Article History
Received: 2 March 2018
Accepted: 10 March 2018
First Online: 1 May 2018
Competing interests
: TL is a full-time employee of the Kennel Club. FN and CM declare no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.