Astrocyte hypoxic response is essential for pathological but not developmental angiogenesis of the retina.

Weidemann A, Krohne TU, Aguilar E, Kurihara T, Takeda N, Dorrell MI, Simon MC, Haase VH, Friedlander M, Johnson RS.
Glia. 2010 Aug;58(10):1177-85. doi: 10.1002/glia.20997.