HIF1A and pancreatic adenocarcinoma: Second, we provide evidence that HIF1α expression levels are associated with the pathological staging of LIHC and that HIF1α expression levels are associated with prognosis in 11 tumors including LIHC, LUSC, MESO, STAD, OV, PAAD, PRAD, THCA, LUAD, MESO, and READ.