Additional file 5.

Unsupervised clustering of first trimester placenta based on differentially methylated probes between 8 and 12 weeks gestation. HeatMap showing unsupervised clustering of 8 and 12 week placenta samples based on 12 probes that showed a Δβ > 0.2 between 8 week and 12 week placenta. The 12 probes were associated with 11 genes, with two probes associated with the BTG4 gene. White corresponds to low methylation, and black to high methylation.

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Novakovic et al. BMC Genomics 2011 12:529   doi:10.1186/1471-2164-12-529