Funding for this research was provided by:
Internal grant program of the Faculty of Health at Witten/Herdecke University (project PreFac, project PreFac, project PreFac, project PreFac)
Private Universität Witten/Herdecke gGmbH
Received: 4 May 2021
Accepted: 3 September 2021
First Online: 16 September 2021
: The study was approved by the ethic committee of University Witten/Herdecke. The study was performed in agreement with the Declaration of Helsinki and ICH-GCP.Written informed consent was received from all participants prior to inclusion.
: Not applicable.
: All authors declare that they have no competing interests.