Pilskog, Hanne Eik https://orcid.org/0000-0003-4781-7117
Birkemoe, Tone
Evju, Marianne
Sverdrup-Thygeson, Anne
Funding for this research was provided by:
County Governor of Vestfold in Norway
Article History
Received: 12 December 2018
Accepted: 17 December 2019
First Online: 1 January 2020
Compliance with ethical standards
:
: The authors declare that they have no competing or conflicting interests.