Fig. 9From: Sperm DNA methylome abnormalities occur both pre- and post-treatment in men with Hodgkin disease and testicular cancerPromoter region of GDF2 of an external validation cohort demonstrates a large variation in sperm DNA methylation. A The averaged methylation of all samples from an external validation cohort is plotted along with the methylation from individual CC and TC patients across the GFD2 promoter locus; B Plot of the average methylation of all samples, from both Canadian and Italian cohorts, in which pyrosequencing results are available. Mean ± SEM; *p < 0.05, Mann–Whitney testBack to article page