Plot of relative abundance of Bifidobacterium animalis (A), Ruminococcus (Ruminococcaceae) (B), and Succinivibrio (Succinivibrionaceae) (C) (repeated-measures ANOVA without multiple-comparison correction, at P = 0.0001, P = 0.02, and P = 0.01, respectively). Plot of relative abundance of Bifidobacterium animalis (A), Ruminococcus (Ruminococcaceae) (B), and Succinivibrio (Succinivibrionaceae) (C) (repeated-measures ANOVA without multiple-comparison correction, at P = 0.0001, P = 0.02, and P = 0.01, respectively). Data are presented as means ± SEM. Xuan He et al. mSystems 2016; doi:10.1128/mSystems.00128-16