They aimed to validate 5 previously identified variants in 5 genes that are reported to be associated with related (polyneuropathy) phenotypes; PRPH associated with nerve conduction,9CEP72 and VAC14 associated with CIPN,24,44IL2RA associated with drug-induced peripheral neuropathy,66 and XIRP2 associated with diabetic peripheral neuropathy.128 Unfortunately, none of these 5 variants were successfully validated in this study (FDR-corrected P value < 0.05 for 5 tests). Here, XIRP2 is linked to polyneuropathy.