Received: 18 December 2020
Accepted: 8 March 2021
First Online: 17 March 2021
: This paper originates at one of ten work packages in the 3P project. The 3P project received ethical approval from the Regional Committee for Medical and Health Research Ethics North, nr.017/1084/REK nord. The data-protection officer at the University Hospital of North Norway has also approved the study. All informants signed an informed consent form.
: ‘Not applicable’ in this case, as no identifying information is provided in the manuscript.
: The authors have no known conflict of interest to disclose.