Funding for this research was provided by:
Received: 16 April 2021
Accepted: 21 September 2021
First Online: 3 November 2021
: Clinical study procedures were performed according to the ethical standards of the national research committee and the declaration of Helsinki 1964. Approval for all clinical procedures and the trial was obtained by the ethical committee of the University of Greifswald (Code BB 015/14). Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: All authors declare that they have no conflict of interest.