a slight trendP = 0.1531
The degree of promoter methylation in patients’ samples plotted against the degree of promoter methylation in PDX samples confirmed the high concordance between the two groups [PCC (Pearson's correlation coefficient) = 0.9938; Fig 3 B], although a slight trend for increased methylation levels of the promoters could be observed in the PDX models [ P = 0.1531 (Wilcoxon rank‐sum test)].