Griffith, Gary P. http://orcid.org/0000-0002-7136-4237
Hop, Haakon
Vihtakari, Mikko http://orcid.org/0000-0003-0371-4319
Wold, Anette
Kalhagen, Kjersti http://orcid.org/0000-0003-3547-1059
Gabrielsen, Geir Wing
Article History
Received: 14 September 2018
Accepted: 12 September 2019
First Online: 21 October 2019
Competing interests
: The authors declare no competing interests.