Fig. 2From: Circulating cell-free DNA-based epigenetic assay can detect early breast cancerHeat map of 140 selected candidate markers. In the heat map, the color of each square represents the methylation level (ß-value) by methylation array, as a color scale bar (right) indicates. The ribbons (a-d) indicate the selectiong conditions described in “Methods”. BC breast cancer, TN triple-negative, FFPE formalin-fixed paraffin-embeddedBack to article page