Funding for this research was provided by:
Teknologi og Produktion, Det Frie Forskningsråd (ROBIN (8022-00243A and 8022-00226B))
Received: 7 December 2020
Accepted: 10 May 2021
First Online: 25 May 2021
: The study was conducted in accordance to the Declaration of Helsinki and approved by the Ethical committee of the Nordjylland Region, Denmark (Approval Number: N 20 150 075). Before participating in experiments, the subjects were informed about the study’s methods and objectives and they have signed a consent form.
: Not applicable.
: The authors mutually declare no competing interests.