For citations:

Nasonov E.L., Lukina G.V., Sigidin Ya.A., Nasonov E.L., Lukina G.V., Sigidin Ya.A. Combination therapy for rheumatoid arthritis with rituximab and leflunomide(preliminary results of the Russian ARBITR Registry). Rheumatology Science and Practice. 2011;49(1):16-20. (In Russ.) https://doi.org/10.14412/1995-4484-2011-862