Funding for this research was provided by:
The Research Council of Norway
The Norwegian Kennel Club
Received: 18 September 2020
Accepted: 19 November 2020
First Online: 7 December 2020
Ethics approval and consent to participate
: All dog owners have given their consent to the use of their dogs DNA-sample in research. DNA-samples were either newly collected using cheek swabs administered by the owner or from earlier studies (available as DNA from our biobank).
: Not applicable.
: The authors declare that they have no competing interests.