TY JOUR TI CONCENTRATION OF IONIZED CALCIUM IN THE SALIVA OF CHILDREN IN THE CITY WITH ECOTOXICANTS KW free calcium KW ionized calcium KW caries KW saliva KW oral fluid KW ecotoxicants JO Actual problems in dentistry AU Chuykin, S.V. AU Egorova, E.G. AU Makusheva, N.V. AU AKATYEVA, G.G. AU Chuykin, O.S. AU Aflahanova, G.R. AU SNETKOVA, T.V. AU Chuykin, G.L. PY 2023 IS 18 PB TIRAZH Publishing House