Straume, Anne Hege
Kjærner-Semb, Erik
Ove Skaftnesmo, Kai
Güralp, Hilal
Kleppe, Lene
Wargelius, Anna
Edvardsen, Rolf Brudvik
Article History
Received: 22 September 2019
Accepted: 19 December 2019
First Online: 15 January 2020
Competing interests
: The authors declare no competing interests.