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. Author manuscript; available in PMC: 2009 Jun 2.
Published in final edited form as: Mol Reprod Dev. 2008 Mar;75(3):504–511. doi: 10.1002/mrd.20721

Fig. 6.

Fig. 6

Proposed role for estrogen (E2) in differentially regulating cytotrophoblast VEGF, Ang-1 and Ang-2 expression and consequently angiogenesis within placental terminal villi during primate pregnancy.