Funding for this research was provided by:
Received: 21 October 2021
Accepted: 9 December 2021
First Online: 21 December 2021
: Ethics approval for the present study was obtained from the Regional Research Ethical Review Board of Umeå University, Sweden (no. 07-031 M with extensions). All participants provided written informed consent to participate and were made aware of their possibility to voluntarily terminate their participation at any time. The study was conducted in accordance with the World Medical Association’s Declaration of Helsinki.
: Not applicable.
: All authors declare that they have no conflict of interest.