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Phylum-level analysis of 16S rRNA gene sequences from CF patients and healthy control individuals. (A) Representation of microbial phyla in subject sputum. (B) Diversity of microbiota in the sputum of CF and control patients. (C) Ratio of Firmicutes to Bacteroidetes in the sputum of CF and control patients. (D) Representation of uncultivated organisms in the sputum of CF and control patients according to our DMI (see Materials and Methods for definitions).
