Klungsøyr, Ole
Lystad, June Ullevoldsæter
Bull, Helen
Evensen, Stig
Ueland, Torill
Falkum, Erik
Article History
Received: 26 February 2021
Accepted: 28 May 2021
First Online: 23 July 2021
Declarations
:
: This study is based on data from a randomized trial (ExternalRef removed Identifier NCT01139502, 6 February 2010), described in detail in previous publications. It was approved by the Data Inspectorate and Regional Ethics Committee in Norway, and written informed consent was obtained from participants after a complete description of the study
: Not applicable
: The authors declaire no competing interests