Myrstad, Marius
Malmo, Vegard
Ulimoen, Sara Reinvik
Tveit, Arnljot
Loennechen, Jan Pål
Article History
Received: 13 June 2018
Accepted: 20 August 2018
First Online: 22 August 2018
Compliance with ethical standards
:
: The authors report no relationships that could be construed as a conflict of interest.