Funding for this research was provided by:
Received: 13 November 2020
Accepted: 7 September 2021
First Online: 17 September 2021
: Our study was approved by the institutional ethics committee of the University Essen-Duisburg, and informed consent was waived (File number: 20–9310-BO, Date: May 6, 2020). The study was registered at the German Clinical Trials Registry (Trial number: DRKS00021675, Date: May 8, 2020). Patients and the public were not involved in this study.
: Not applicable.
: The authors state they have no competing interests.