Figure 1From: The nasal cavity microbiota of healthy adultsPrincipal coordinates analysis of nasal cavity, buccal mucosa and tongue microbiota. Principal coordinates analysis was performed on a matrix of θ distances between all samples. OTUs were defined as 3% different. Axis 1, representing 29.8% of the variance, and axis 2, representing 19.3% of the variance, are displayed.Back to article page