For citations:

Kaleda M.I., Kolkhidova Z.A., Nikishina I.P. Biological therapy of seropositive juvenile idiopathic arthritis: Results of a retrospective single-center study. Rheumatology Science and Practice. 2023;61(3):369-376. (In Russ.) https://doi.org/10.47360/1995-4484-2023-369-376