00564naa#a2200193#i#450# EN\\bibl\56887 20241204114403.3 2712-8164 20211225b2021####ek#y0engy0150####ca RUS RU PHARMACOLOGICAL CHARACTERISTICS OF XANTHINE DERIVATIVES Journal article Astrakhan Astrakhan State Medical University 2021 7 с. Journal article local . 547.853.3:615.015 RUS Tsybizova Alexandra A Umarova Gulzhanna N kaspmed.ru