Fig. 2From: A metagenome-wide association study of gut microbiota in asthma in UK adultsReduced gut microbial richness in asthma. (a-f) Richness and alpha-diversity (Shannon index) at the gene, MGS and KO level of the two cohorts (Test by two-tailed Wilcoxon-rank sum test). Box plots showing both the richness values or diversity values and their densityBack to article page