Conflicts of Interest The authors declare no conflicts of interest. Supporting Information Filename Description iju70299-sup-0001-Supinfo.docxWord 2007 document , 124.2 KB Figure S1: Standard curves with primers for qMSP. Standard curves with primers for MSP analysis by qPCR were plotted based on the ratio of methylated and non-methylated DNA. The percentage displayed on the x-axis indicates the ratio of methylated DNA to the sum of methylated and non-methylated DNA.