PRR11 and gastric cancer: Multivariate analysis confirmed that tumor size, tumor differentiation and PRR11 expression were independent prognostic predictor of overall survival of gastric cancer patients (HR = 0.663; 95% CI: 0.406–0.961 for tumor size, HR = 0.545; 95% CI: 0.372–0.798 for PRR11, HR = 0.548; 95% CI: 0.376–0.801 for tumor differentiation).