00595naa#a2200169#i#450# EN\\bibl\38346 20241002081859.3 2409-3750 20200618b2020####ek#y0engy0150####ca RU CONSTITUTIONAL FEATURES OF THE COURSE OF CHRONIC GASTRODODUDENITIS ASSOCIATED WITH H.PYLORI IN CHILDREN Journal article Tula LLC Information and publishing center Innovations and investments 2020 6 с. Journal article local Медицина. Охрана здоровья. 61 Balko O. A. zh-szf.ru