Hif-2α is not essential for cell-autonomous hematopoietic stem cell maintenance. by Guitart, A, Subramani, C, Armesilla-Diaz, A, Smith, G, Sepulveda, C, Gezer, D, Vukovic, M, Dunn, K, Pollard, P, Holyoake, T, Enver, T, Ratcliffe, P, Kranc, K