Figure 1From: Aberrant methylation of NPY, PENK, and WIF1 as a promising marker for blood-based diagnosis of colorectal cancer Schematic representation of the study design. First target genes have been identified by using Illumina microarray analyses on tissues, stools, sera. Then a multiplex methylated test has been constructed and evaluated on tissue samples. Finally, two validations in sera have been then performed (Series 1 and 2).Back to article page