To further explore the risk conveyed by PTPRs, we scored male subjects combined with 1047 male controls from a melanoma study genotyped on the same chip platform (see Supplementary Material) stratified by stages,27 see Figure 5 (PTPRT) and Supplementary Figure 13 (PTPRB, PTPRD, and PPFIBP1). This evidence concerns the gene PPFIBP1 and melanoma.