CD31 angiogenesis and combined expression of HIF-1α and HIF-2α are prognostic in primary clear-cell renal cell carcinoma (CC-RCC), but HIFα transcriptional products are not: implic... by Biswas, S, Charlesworth, P, Turner, G, Leek, R, Thamboo, P, Campo, L, Turley, H, Dildey, P, Protheroe, A, Cranston, D, Gatter, K, Pezzella, F, Harris, A