V. B. Radchuk, N. V. Hasiuk, P. A. Hasiuk and R. А. Levandovskyi 2020. CHARACTERISTICS OF CHANGES IN THE CELLULAR COMPOSITION OF GUMS IN CLINICAL OBSERVATIONS WITH TIME DEPENDING ON THE TYPE OF ODONTOPREPARATION FOR CERMET STRUCTURES. Eastern Ukrainian Medical Journal. 6, 4 (Oct. 2020), 389–395.