For citations:

Beketova T.V., Blank L.M., Lila A.M. Covid-19 in a patient with ANCA-associated systemic vasculitis, receiving anti-B cell therapy (rituximab). Rheumatology Science and Practice. 2020;58(4):456-462. (In Russ.) https://doi.org/10.47360/1995-4484-2020-456-462