Fig. 4From: Lack of detection of a human placenta microbiome in samples from preterm and term deliveriesHeatmap showing the relative abundance of classified reads in each sample from shotgun metagenomic sequencing. Columns show individual samples, rows show genuses, grouped by phylum. The lineages shown are the top three most abundant classifications per sample. Denser sample labeling is available in Additional file 2: Figure S5Back to article page