Shima, D.T., Adamis, A.P., Ferrara, N., Yeo, K.T., Yeo, T.K., Allende, R., et al. (1995) Hypoxic induction of endothelial cell growth factors in retinal cells: Identification and characterization of vascular endothelial growth factor (VEGF) as the mitogen. Molecular Medicine, 1, 182-193.