Fig. 3From: Characteristics of the sputum microbiome in COPD exacerbations and correlations between clinical indicesHeatmap and barplot showing the statistic differences of relative abundance of taxa among healthy controls, and COPD patients at different stages (AECOPD, recovery, and stable COPD, respectively) at phylum (a, b) and genus (c, d) levels. *, ** means p < 0.05, p < 0.01, respectivelyBack to article page