von Kempis, J., Dudler, J., Hasler, P., Kyburz, D., Tyndall, A., Zufferey, P. and Villiger, P.M. 2012. Use of abatacept in rheumatoid arthritis. Swiss Medical Weekly. 142, 1920 (May 2012), w13581. DOI:https://doi.org/10.4414/smw.2012.13581.