Eide, Per Kristian http://orcid.org/0000-0001-6881-9280
Sorteberg, Angelika
Sorteberg, Wilhelm
Lindstrøm, Erika Kristina
Mardal, Kent-Andre
Ringstad, Geir
Article History
Received: 3 December 2018
Accepted: 11 December 2018
First Online: 17 December 2018