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Relative H. pylori recovery for different atmospheres when compared to recovery obtained by the use of Campygen sachets (control). Atmosphere 1 is 13% CO2-5% O2-3% H2; atmosphere 2 is 5% CO2-5% O2-3% H2; and atmosphere 3 is 15% CO2-6%O2-0% H2. No statistically significant difference was found between the three described atmospheres.
