Funding for this research was provided by:
Received: 20 December 2020
Accepted: 1 June 2021
First Online: 29 June 2021
: The study was performed in accordance with the ethical standards of the ethical committee of the Friedrich-Alexander-University Erlangen-Nürnberg and with the 1964 Helsinki Declaration and its later amendments. This article does not contain any studies with animals performed by any of the authors. This study was approved by the FAU Ethical committee (43_19B). All participants of this project gave written informed consent to participate and for data analysis and publication.
: The authors declare that they have no competing interests.