Funding for this research was provided by:
Received: 14 March 2021
Accepted: 26 July 2021
First Online: 6 August 2021
: The study was approved by the ethics committee of the Medical Faculty, University of Freiburg (No. 63/19) and performed in accordance with the guidelines of the 1964 Declaration of Helsinki and its later amendments.
: All participants gave their consent to publication.
: All authors report no conflicts of interest with the submitted work. Outside this study BB received travel grants and/or training expenses from Bayer Vital GmbH, Ipsen Pharma GmbH, Norvartis, Biogen GmbH and Genzyme, as well as lecture fees from Ipsen Pharma GmbH, Alexion Pharma GmbH, Merck, Sanofi Genzyme and Roche.