Myrstad, Marius http://orcid.org/0000-0002-9682-5255
Ihle-Hansen, Håkon
Tveita, Anders Aune
Andersen, Elizabeth Lyster
Nygård, Ståle
Tveit, Arnljot
Berge, Trygve
Article History
Received: 19 May 2020
Accepted: 7 July 2020
First Online: 13 July 2020
Ethics approval and consent to participate
: The Hospital Trust institutional review board approved the study as minimal risk as only routine clinical data were collected from the electronic health records. Hence, the requirement for informed consent was waived. However, a letter with information about the study was sent by post to all patients, enabling the patient to withdraw their data.
: The publication of the results from this study was approved by the The Hospital Trust institutional review board.
: MM and HIH have received a speaker fee from Boheringer-Ingelheim. The other authors declare that they have no competing interests.