Fig. 3From: The hypermethylation of p16 gene exon 1 and exon 2: potential biomarkers for colorectal cancer and are associated with cancer pathological stagingThe multiple reaction monitoring chromatograms of Adenine and Cytosine. a Total ions chromatograph (TIC). b Adenine, m/z 136.1 > 119.0. c Cytosine, m/z 112.0 > 95.0Back to article page