Funding for this research was provided by:
Projekt DEAL
Article History
Received: 6 July 2020
Accepted: 8 December 2020
First Online: 20 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008.
: Informed consent was obtained from all individual participants included in the study.