Prognostic values of NOX family genes in pancreatic cancer. (A) Survival analysis of OS in patients in the TCGA dataset with the mRNA expression of DUOX2. (B) Survival analysis of RFS in patients in the TCGA dataset with the mRNA expression of DUOX2. NOX, nicotinamide adenine dinucleotide phosphate oxidase; OS, overall survival; TCGA, The Cancer Genome Atlas; mRNA, messenger RNA; DOUX2, dual oxidase 2; RFS, relapse-free survival.