Fig. 2From: Transcriptome analysis of bacteriophage communities in periodontal health and diseaseBar graph of the percentage of phage reads (± standard error) homologous to Firmicutes or Proteobacteria from the phage family Siphoviridae (a) or Myoviridae (b). Subjects with relative periodontal health are shown in white bars and subjects with significant periodontal disease are shown in black bars. P-values are demonstrated above each bar and represent the observed differences between periodontal health and disease, and significance (p < 0.05) is shown in boldBack to article page