Additional file 2.

Figure S2 - density plotting of samples on NMDS revealed two enterotypes at the phylum level. The same result, that is, two optimal clusters, was observed when using three different distance matrices: (a) genus level Bray-Curtis, (b) genus level Jensen-Shannon and (c) OTU level weighted Unifrac.

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Hildebrand et al. Genome Biology 2013 14:R4   doi:10.1186/gb-2013-14-1-r4