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. 2019 Jul 15;9:10228. doi: 10.1038/s41598-019-46494-0

Figure 2.

Figure 2

Box and whisker plot showing Chao index analysis for each sample site. Number of unique bacterial operational taxonomic units (OTUs) for patients with DS (blue) compared with patients without DS (red) in samples of the (A) denture-fitting surface, (B) palatal mucosa surface and (C) tongue. A significant (P = 0.007) reduction in the number of detected OTUs was observed in samples from the tongue of DS patients, but strong similarities in samples of the denture-fitting surface and the palate were observed.