TY JOUR TI THE INFLUENCE OF IMMUNOMODULATION ON THE GINGIVAL FLUID CELL COMPOSITION OF ELDERLY PATIENTS WITH PERIODONTITIS KW JO Actual problems in dentistry AU Krajnov, S.V. AU Yakovlev, A.T. AU Linchenko, I.V. AU Mihalchenko, V.F. AU Popova, A.N. PY 2018 IS 14 PB TIRAZH Publishing House