Kristoffersen, Agnete E. https://orcid.org/0000-0003-4642-0310
Broderstad, Ann Ragnhild
Musial, Frauke
Stub, Trine
Article History
Received: 14 June 2018
Accepted: 3 October 2019
First Online: 11 November 2019
Ethics approval and consent to participate
: The study has been approved by the Regional Committee for Medical and Health Research Ethics (REK 2014/940). Written informed consent was obtained from all participants.
: Not applicable.
: The first author, Agnete Egilsdatter Kristoffersen is a member of the editorial board (Associate Editor) of <i>BMC Complementary and Alternative Medicine</i>.