Received: 11 July 2019
Accepted: 10 March 2020
First Online: 18 March 2020
Ethics approval and consent to participate
: The study was approved by the Regional Committee for Medical and Health Research Ethics, Norway (project 2011/790/REK sør-øst), and by the Data Protection Officer at Akershus University Hospital (project 2012_097). Patients received oral and written information of the project and only patients giving written consent were included. Refusal to participate had no consequence for the care offers.
: Not applicable.
: The authors declare that they have no competing interests.