TY - JOUR T1 - Clarithromycin-resistance of Helicobacter pylori strains isolated in St.Petersburg, Russia JF - Helicobacter AU - Svarval A., AU - Starkova D., AU - Ferman R., Y1 - 2022-08-31 UR - https://pasteur.elpub.ru/publication/1668 N2 -