Funding for this research was provided by:
Received: 16 March 2023
Accepted: 20 August 2023
First Online: 5 September 2023
: All participants or their legal representatives gave written informed consent to the use of the data for this study. The Ethics committee of Ulm University, Germany gave written approval for this study (reference # 321/16). The study was consistent with the declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.