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Alpha diversity estimates, represented by operational taxonomic unit richness or Shannon diversity. (A) Median and interquartile range (IQR) in participants receiving placebo or probiotic capsules. †Wilcoxon signed‐rank test. (B) Box plot representing distribution of participants receiving placebo or probiotic capsules. 
probiotic, week 0; 
probiotic, week 4; 
placebo, week 0; 
placebo, week 4
