Fig. 3From: Composition and diversity of the subgingival microbiome and its relationship with age in postmenopausal women: an epidemiologic investigationAlpha (within-group) diversity of identified taxa according to age groups. Panel a gives the rarefaction curve and Panel b gives measures of richness (Chao-1, P = 0.55; OTU counts, P = 0.35) and evenness (Shannon entropy, P = 0.42)Back to article page