Corrigendum to: Obesity reduces the real-world effectiveness of cytokine-targeted but not cell-targeted disease-modifying agents in rheumatoid arthritis - Schafer, M.; Meissner, Y.; Kekow, J.; Berger, S.; Remstedt, S.; Manger, B.; Listing, J.; Strangfeld, A.; Zink, A. (Rheumatology (Oxford), 2020)