Received: 6 March 2020
Accepted: 29 July 2020
First Online: 20 August 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board of the ethics committee of Charité Universitätsmedizin Berlin, Germany (approval number EA1/252/17). Written informed consent was obtained from all patients in a form accepted by the mentioned committee.
: Not applicable.
: MC received travel grants from Astellas.MD received travel grants and speakers honoraria from BMS, Novartis, Roche and Astellas.KB received research funds and/or honoraria from Abbvie, Alexion, Astellas, Bristol-Myers Squibb, Chiesi, Fresenius, Genentech, Hexal, Novartis, Otsuka, Pfizer, Roche, Siemens, and Veloxis Pharma.SB received honoraria from Astellas, Bristol-Myers Squibb, Chiesi, Chilis, Novartis, Pfizer, and Roche.FB, KW, NL, DS, AK, KUE, PN have no conflict of interest to declare.