Funding for this research was provided by:
The Cancer Foundation, St. Olavs Hospital Universitetssykehuset i Trondheim
NTNU Norwegian University of Science and Technology
Article History
Received: 8 December 2020
Accepted: 5 February 2021
First Online: 22 February 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Medical and Health Sciences Research Ethics (REK Midt-Norge, Norway, reference number 836/2009).