Folmo, E. J. http://orcid.org/0000-0001-8271-3271
Karterud, S. W.
Kongerslev, M. T.
Kvarstein, E. H.
Stänicke, E.
Article History
First Online: 22 January 2019
Compliance with Ethical Standards
:
: None of the authors have any financial disclosure/conflict of interest related to this manuscript.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent: Informed consent was obtained from all individual participants included in the study.