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Hierarchical clustering of microbiota data at bacterial family level. Abundances are colour-coded according to the colour key on the top left with grey representing a value of zero. Euclidean distance and complete linkage were used to cluster the rows and columns of the heatmap. The colour bar on top of the heatmap corresponds to sample type: CAC red, CAS green and CFS blue. All taxa present at less than 1% in all three groups are excluded from the heatmap
