Funding for this research was provided by:
Received: 11 February 2021
Accepted: 29 March 2021
First Online: 6 April 2021
: This study was approved by the ethics committee of the University of Göttingen, and conforms to the Declaration of Helsinki. All patients or their legal guardians gave their informed consent to participation in the study.
: Not applicable.
: There are no study-specific conflicts of interest for any of the authors.