We also considered the analysis of recurrence of cancer, and we found that the level of gene expression in the normal tissue was associated with recurrence for many genes: FOXC2, CDC20, OCLN and SERPINB2 (p = 0.0067, p = 0.0067, p = 0.048 and p = 0.0352 respectively). Here, SERPINB2 is linked to cancer.