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. Author manuscript; available in PMC: 2008 Oct 7.
Published in final edited form as: Dev Biol. 2005 Dec 1;289(1):44–54. doi: 10.1016/j.ydbio.2005.10.003

Fig. 12.

Fig. 12

Reproduced with permission of the authors from Drake et al. (2000). (a) Control, showing untreated endothelial cells’ formation of a normal capillary plexus. (c) Injecting soluble VEGFR-1 into chick embryos blocks VEGF-signaling, causing clusters of rounded, vascular progenitor cells to form. (b, d) Stained nuclei of vascular progenitor cells. Scale bar, 15 μm.