TY JOUR TI QUALITY OF LIFE AS AN INDICATOR OF THE EFFECTIVENESS OF THE CHOICE OF THE METHOD OF TREATING ULCER DISEASES KW quality of life KW peptic ulcer KW operative KW conservative treatment JO Science and education: new time AU Kunitsa, V.N. AU Polishchuk, T.F. AU Chernukha, S.N. AU Kirsanova, N.V. AU Polskaya, L.V. PY 2019 IS 1 PB Non-state educational private institution of additional professional education "Expert-methodological centre"