Løberg, Else-Marie http://orcid.org/0000-0002-4243-5067
Gjestad, Rolf
Posserud, Maj-Britt
Kompus, Kristiina
Lundervold, Astri J.
Article History
Received: 23 May 2018
Accepted: 9 February 2019
First Online: 28 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All human studies have been approved by the appropriate ethics committee and have therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. The manuscript does not contain animal data. All persons gave their informed consent prior to their inclusion in the study.