Funding for this research was provided by:
Universitätsmedizin der Johannes Gutenberg-Universität Mainz
Received: 16 December 2020
Accepted: 29 July 2021
First Online: 19 August 2021
: Written informed consent was obtained from all participants (or their parents or guardian). The study was approved by the Human Ethics Committee Rhineland-Palatinate (837.288.16 (10607)) and conformed to the Code of Ethics of the World Medical Association (Declaration of Helsinki).
: Not applicable.
: The authors declare that they have no competing interests.