Received: 16 April 2020
Accepted: 19 June 2020
First Online: 4 July 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Regional Research Ethics Committee of Southern Denmark (S-2011–0018) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.