Braun, Tobias https://orcid.org/0000-0002-8851-2574
Thiel, Christian https://orcid.org/0000-0003-4507-8787
Schulz, Ralf-Joachim
Grüneberg, Christian https://orcid.org/0000-0001-8870-8457
Funding for this research was provided by:
Projekt DEAL
Article History
Received: 14 September 2020
Accepted: 25 January 2021
First Online: 1 March 2021
Ethics approval and consent to participate
: The study was approved by the Ethical Review Board of the University of Cologne, Germany. Ongoing, written informed consent was provided by all participants. Guardian informed consent was approved if necessary.
: Not applicable.
: The authors declare that they have no competing interests.