TY JOUR TI FEATURES OF IMMUNOLOGICAL REACTIVITY OF PATIENTS WITH LICHEN PLANUS OF THE ORAL MUCOSA KW lichen planus KW oral mucosa KW immunological reactivity KW pathogenesis KW autoimmune process JO Actual problems in dentistry AU Bikmurzin, V.P. AU Balyabina, L.A. AU Gimraniva, I.A. AU Akmalova, G.M. AU Chuykin, S.V. AU Chernyshova, N.D. AU Yepishova, A.A. PY 2021 IS 17 PB TIRAZH Publishing House