Funding for this research was provided by:
Received: 22 June 2021
Accepted: 19 July 2021
First Online: 30 July 2021
: The Ethics Committee of the University of Cologne approved the study on 02.02.2001 (ID 20-1475_2; Head: Prof. Dr. Raymond Voltz). The study was conducted in accordance with CONSORT guidelines.
: Not applicable.
: There are no competing interests in regard of this study.