%0 Book %T Propedeutic periodontics %A Mandra, Y.V. %A Griroriev, S.S. %A Svetlakova, E.N. %A Semencova, E.A. %A Gegalina, N.M. %A Vlasova, M.I. %A Kotikova, A.Y. %A Boldyrev, Y.A. %A Ivashov, A.S. %A Legkih, A.V. %K Propedeutic periodontics, epidemiology, etiology, pathogenesis, diagnosis and treatment %D 2021 %P 152 %I TIRAZH Publishing House