For citations:

Voropaeva A.V., Shevchenko N.I. Determination of Helicobacter pylori primary resistance to levofloxacin in gastric mucosal biopsy samples using real-time polymerase chain reaction. Health and Ecology Issues. 2023;20(4):149–154. (In Russ.) https://doi.org/10.51523/2708-6011.2023-20-4-19