Funding for this research was provided by:
Kreftforeningen (100933 and 182609)
Helse Vest (911946, 912051 and 912178)
Received: 17 January 2019
Accepted: 22 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: The study was conducted according to the Declaration of Helsinki. Collection of patient samples and the use of these samples in the present study were approved by the Regional Ethics Committee. Samples were collected and stored after written informed consent (REK Vest 2015/1759), and the use of biological material and the present project was also approved by the committee (REF Vest 2017/305, 2013/102). The normal controls were healthy blood donors; in accordance with the approved routines at the Blood Bank, Haukeland University Hospital, peripheral venous blood samples for medical research were donated after written informed consent.
: Not applicable
: The authors declare that they have no competing interests.