TY JOUR TI DIAGNOSIS OF ORAL LICHEN PLANUS KW oral lichen planus KW lichen planus KW oral mucosa KW pathomorphology KW diagnostics JO Actual problems in dentistry AU Dregalkina, A.A. AU Borisenko, N.S. AU Tolstykh, D.V. AU Yepishova, A.A. AU Chernyshova, N.D. AU Plotnikov, A.S. PY 2026 IS 2021 PB TIRAZH Publishing House