For citations:
Cheldieva FA, Reshetnyak TM, Cherkasova MV, Lila AM. Extra criterial antiphospholipid antibodies in patients with antiphospholipid syndrome and systemic lupus erythematosus (preliminary data). Sovremennaya Revmatologiya=Modern Rheumatology Journal. 2021;15(5):18-25. (In Russ.) https://doi.org/10.14412/1996-7012-2021-5-18-25