There was a significant association between the FOLR1 level in tumor tissue and unfavorable treatment responses when stages IA and IB were excluded or when patients with intermediate/high risk were considered according to their International Germ Cell Collaborative Group (IGGCCG) scores (p = 0.05 and p = 0.03, respectively) (FIG.7). This evidence concerns the gene FOLR1 and neoplasm.