CHO, RW. Recent advances in cancer stem cells. Curr Opin Genet Dev. 2008, 18, 48-53
QUAIL, DF. Microenvironmental regulation of cancer stem cell phenotypes. Curr Stem Cell Res Ther. 2012, 7, 197-216
MIMEAULT, M. Hypoxia-inducing factors as master regulators of stemness properties and altered metabolism of cancer-and metastasis-initiating cells. J Cell Mol Med. 2013, 17, 30-54