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Microbial community barplot with a cluster tree. Bar charts showing the relative abundance of the phyla detected in the lung tissues collected from the rats of NC (NC1–NC4), SC (SC1–SC3), and AA (AA1–AA3). The identities of microbial phyla were shown with color blocks on the right, and the length of the color blocks denoted the relative abundance. An Hcluster tree was placed on the left side of the graph. The length of the branches indicated the distance between the samples.
