Atreya, Raja http://orcid.org/0000-0002-8556-8433
Siegmund, Britta http://orcid.org/0000-0002-0055-958X
Article History
Accepted: 29 January 2021
First Online: 12 March 2021
Competing interests
: B.S. has served as a consultant for Abbvie, Boehringer, Celgene, Falk, Janssen, Lilly, Pfizer, Prometheus, Takeda and has received speaker’s fees from Abbvie, CED Service GmbH, Falk, Ferring, Janssen, Novartis and Takeda as a representative of Charité – Universitätsmedizin Berlin. R.A. has served as a speaker, or consultant, or received research grants from AbbVie, Biogen, Boehringer Ingelheim, Celgene, Dr. Falk Pharma, Ferring, InDex Pharmaceuticals, Janssen-Cilag, MSD Sharp & Dome, Pfizer, Roche Pharma, Samsung Bioepis and Takeda.