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Article History

Received: 17 June 2021

Accepted: 3 January 2022

First Online: 18 January 2022

Declarations

:

: The ethical approval was obtained before the start of the study from the ethics committee of the University of Ulm (ref: 463/18). There were no ethical objections to the conduct of the study. Furthermore, the study was conducted in accordance with the Declaration of Helsinki. Study participants were informed about the study via an information sheet and were asked to provide written informed consent to participate.

: All participants received a written declaration of consent prior to participation in the study, which also included consent to the publication of anonymous data of individual participants.

: The authors declare that they have no competing interests with respect to the research.