Research Article

Variability in Prevalence of Helicobacter pylori Strains Resistant to Clarithromycin and Levofloxacin in Southern Poland

Figure 3

Activity of clarithromycin and levofloxacin against primary and secondary H. pylori strains. *statistically significant differences between the level of resistance to levofloxacin in the years 2006–2008 and 2009–2011.
418010.fig.003