For citations:

Zilberberg N.V., Kokhan M.M., Filimonkova N.N., Kascheeva Ya.V., Topychkanova E.P., Rimar O.G., Gileva P.S. Difficulties in diagnostics of systemic lupus erythematosus. Lechaschi Vrach. 2020;(5):36. (In Russ.) https://doi.org/10.26295/OS.2020.84.96.007