Funding for this research was provided by:
bundesministerium für bildung und forschung (01EN2008)
Received: 3 August 2021
Accepted: 23 December 2021
First Online: 19 January 2022
Change Date: 12 May 2022
Change Type: Update
Change Details: The Funding section has been updated.
: As of 16 July 2021, the Ethics Committee of the University of Bonn has approved this trial without any restriction (reference number 211/21-AMG-ff). Written informed consent to participate will be obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.