Funding for this research was provided by:
German Science Foundation (KL756/5-2)
Article History
Accepted: 11 October 2020
First Online: 10 November 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: Participation in the study was voluntary and anonymous. Informed consent was obtained from all individual participants included in the study. The data and personal information collected through this study were treated confidentially.