Article History
Received: 1 June 2021
Accepted: 13 December 2022
First Online: 1 February 2023
Declarations
:
: L. Neumeyer, A. Gründler and A.-L. Stöber declare that they have no competing interests.
: For this article no studies with human participants or animals were performed by any of the authors. All studies mentioned were in accordance with the ethical standards indicated in each case. <b>Consent to participate (include appropriate statements): </b>not applicable. <b>Consent for publication (include appropriate statements): </b>not applicable.