Funding for this research was provided by:
Received: 2 March 2019
Accepted: 20 May 2019
First Online: 31 May 2019
Ethics approval and consent to participate
: The study conformed to Danish law for animal research (Act no. 1306 of 23/11/2007, Danish ministry of Justice) and the Guide for the Care and Use of Laboratory Animals published by the National Institute of Health.
: Not applicable. This manuscript does not contain data from any individual person.
: The authors declare that they have no competing interests.