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Results of beta diversity analyses. (A,B) Biplots based on weighted UniFrac (A) and unweighted UniFrac (B) are shown. Each color represents a participant group: blue for healthy young (HY), green for ambulatory older people (AO), and red for bedridden older patients (BO). Ellipses represent 95% confidence region of each group. Arrows represent the projection of each genus on the principal coordinate analysis. PC, principal coordinate.
