Of note, the other haplotype, rs26653G-rs26618C-rs2287987T-rs30187C-rs27044C-rs2248374A, possessing the same alleles in all ERAP1 SNPs but differing only by ERAP2 allele, was not associated with NSCLC independently of smoking status. Here, ERAP1 is linked to non-small cell lung carcinoma.