Christiansen, Emil http://orcid.org/0000-0001-6643-503X
Marioara, Calin Daniel
Holmedal, Bjørn
Hopperstad, Odd Sture
Holmestad, Randi
Funding for this research was provided by:
Norges Forskningsråd (237885, 197405, 237885, 197405, 237885, 197405, 237885, 197405, 237885, 197405)
Article History
Received: 6 June 2019
Accepted: 5 November 2019
First Online: 25 November 2019
Competing interests
: The authors declare no competing interests.