Funding for this research was provided by:
Helse Sør-Øst RHF (2010011)
Article History
Received: 19 February 2019
Accepted: 16 January 2020
First Online: 29 January 2020
Ethics approval and consent to participate
: This study is approved by the Norwegian Regional Committee for Medical and Health Research Ethics (REK Sør-Øst, 2014/1468). An informed written consent will be obtained from patients prior to inclusion. Biomaterial will be stored in our REK approved Biobank at Oslo University Hospital, Rikshospitalet (REK Sør-Øst 2014/2078).
: Not applicable.
: The authors declare that they have no competing interests<b>.</b>