Funding for this research was provided by:
Deutsches Rheuma-Forschungszentrum Berlin (DRFZ)
Received: 10 August 2021
Accepted: 13 October 2021
First Online: 8 November 2021
: The study was approved by the ethics committee of the Charite Medical University of Berlin. All participants provided written informed consent/assent.
: Not applicable.
: The authors declare that they have no competing interests. HG, AS, MN, RB, AJ, NG, and JK have nothing to declare. TH received payment or honoraria for advisory boards (Pfizer, Novartis, Sobi). KM received consultancy honoraria from Pfizer, Abbvie, Novartis, Sanofi, gsk, and Roche. CR received consultancy honoraria from Novartis, MSD, AbbVie, and Pfizer. The institution of MH receives funding for participation in clinical studies financed by Novartis.