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Identification hypoxia-related lncRNA in EC. a The univariate Cox regression analysis of 17 hypoxia-related lncRNAs in EC. b, c The expression heatmaps (b) and box plot (c) of 17 hypoxia-related lncRNAs in different EC tumor and normal tissue samples. * P < 0.05, ** P < 0.01, ***P < 0.001
