Received: 19 June 2020
Accepted: 17 November 2020
First Online: 3 December 2020
Ethics approval and consent to participate
: The study design was reviewed by the ethics committee of the University of Leipzig, Germany under the procedure number 184/20-ek, there were no ethical concerns. Consent to participate was not applicable according to national regulations as routine treatment data was anonymously passed on to researchers. The ethics committee stated no concerns regarding the method of data collection including consent to participate.
: All authors gave their consent for publication.
: Conflict of interest: JJ, MP, KW and MB declare no conflict of interest. Felix Regenold holds shares < 5% of a regulatory affairs service company (Dr. Regenold GmbH) which is run by a family member.