Fig. 1From: Tools for translational epigenetic studies involving formalin-fixed paraffin-embedded human tissue: applying the Infinium HumanMethyation450 Beadchip assay to large population-based studiesWorkflow diagram for assessing the suitability of FFPE tumour-enriched DNA on the HM450K platform. A novel checkpoint (QC checkpoint 3) has been incorporated in addition to the standard protocol to assess DNA availability after sodium bisulfite modification and restoration. The number of samples entering and exiting each QC checkpoint is as indicatedBack to article page