Frič, Radek http://orcid.org/0000-0002-4267-0542
Due-Tønnessen, Bernt Johan
Lundar, Tryggve
Egge, Arild
Kronen Krossnes, Bård
Due-Tønnessen, Paulina
Stensvold, Einar
Brandal, Petter
Article History
Received: 17 January 2020
Accepted: 14 May 2020
First Online: 10 June 2020
Competing interests
: The authors declare no competing interests.