00689naa#a2200181#i#450# EN\\bibl\4026 20241121212659.4 20200218b2020####ek#y0engy0150####ca RU ASSESSMENT OF PHYSICO-CHEMICAL PARAMETERS OF MIXED SALIVA UNDER THE INFLUENCE OF THE NEW TOOTHPASTE WITH SODIUM BICARBONATE AND SILICON DIOXIDE Conference article/thesis Ekaterinburg TIRAZH Publishing House 2020 2 с. Conference article/thesis local Медицина. Охрана здоровья. 61 Ermishina Elena Yu. Elovicova Tat'yana Mihaylovna Nogovicina A. S. dental-press.ru