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Flow chart of the study. The study was carried out in TCGA and Fudan lncRNA dataset of PDAC patients. The TCGA training cohort was used to identify prognostic lncRNAs. The LASSO regression model was used to establish a prognostic signature based on the prognostic lncRNAs. The prognosis analysis was validated in the TCGA and Fudan validation cohort, respectively.
