Funding for this research was provided by:
Received: 2 December 2020
Accepted: 8 March 2021
First Online: 22 March 2021
: Data analysis was approved (Number S-148/2020, S-546/2020) by the Ethics Committee of the Medical Faculty of Heidelberg University Hospital and was conducted in accordance with the Declaration of Helsinki [CitationRef removed].
: Not applicable.
: The authors declare that they have no competing interests.