Box-and-Whisker plot of Firmicutes/Bacteroidetes ratios in the three age-groups. Horizontal lines represent the paired comparison. Boxes contain 50% of all values and whiskers represent the 25th and 75th percentiles. Significantly different (P < 0.05) ratios are indicated by *, while NS corresponds to non-significant differences.
Mariat et al. BMC Microbiology 2009 9:123 doi:10.1186/1471-2180-9-123