Funding for this research was provided by:
Ministerium für Wirtschaft, Innovation, Digitalisierung und Energie des Landes Nordrhein-Westfalen (33.31-DMR-AW-20-001/UNIWH)
Private Universität Witten/Herdecke gGmbH
Received: 22 April 2021
Accepted: 22 September 2021
First Online: 1 October 2021
: The study was positively approved by the Ethics Committee of the University of Witten/Herdecke under reference number 158/2020, i.e. it was checked for compliance with the Declaration of Helsinki on Medical Research Involving Human Subjects as well as with the applicable data protection regulations.
: Not applicable.
: The authors declare that they have no competing interests.