Funding for this research was provided by:
Received: 29 January 2021
Accepted: 23 July 2021
First Online: 17 August 2021
Change Date: 3 November 2021
Change Type: Update
Change Details: An amendment to this paper has been published and can be accessed via the original article.
: The author declares that the manuscript including generated data is in accordance with the Declaration of Helsinki, with national ethical legal regulations, and with the ethics committee of the University of Regensburg, Germany.
: Not applicable.
: The author declares no competing interests.