Vetrie, David http://orcid.org/0000-0003-2075-4662
Helgason, G. Vignir http://orcid.org/0000-0003-1616-132X
Copland, Mhairi http://orcid.org/0000-0002-7655-016X
Article History
Accepted: 20 November 2019
First Online: 6 January 2020
Competing interests
: The authors declare no competing interests.