Schistad, Elina Iordanova http://orcid.org/0000-0003-4239-3298
Bjorland, Siri
Røe, Cecilie
Gjerstad, Johannes
Vetti, Nils
Myhre, Kjersti
Espeland, Ansgar
Article History
Received: 6 June 2018
Revised: 23 August 2018
Accepted: 29 August 2018
First Online: 25 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interests.
: 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 was obtained from all individual participants included in the study.
: The authors declare that there are no competing interests regarding the publication of this paper.