Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (BMBF 01EC1407A)
Received: 13 January 2019
Accepted: 9 March 2020
First Online: 2 April 2020
Ethics approval and consent to participate
: The patient consent form included an agreement to also use the data for research purposes (Ethics approval 52_14B of the Medical Faculty of FAU Erlangen-Nuremberg).
: Not applicable.
: The authors declare that they have no competing interests.