1. Expression of vascular endothelial growth factor-A and its receptor-1 in a luteal endometrium in patients with repeated in vitro fertilization failure 
Byung Chul Jee, M.D., Chang Suk Suh, M.D., Ki Chul Kim, M.D., Won Don Lee, M.D., Haeryoung Kim, M.D., Seok Hyun Kim, M.D. 
Fertility and Sterility 
Volume 91, Issue 2, Pages (February 2009)
DOI: /j.fertnstert
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Photomicrographs showing VEGF expressions in the early luteal phase (CD16) (all scored as intensity 6); glandular epithelial cells originally magnified by ×200 (A) and ×400 (B), stromal cells magnified by ×400 (C), and endothelial cells magnified by ×400 (D). (E–H) Expression of VEGFR-1 in the midluteal phase (CD22); (E, F) glandular epithelial cells scored as intensity 6 (×400), (G) stromal cells scored as intensity 5 (×400), (H) endothelial cells scored as intensity 5 (×400). (I–L) Reactivity of endothelial cells with anti-CD31 within endometrium in the early luteal phase (CD17); (I, J) microvascular density counted as 36.6 per high-power field magnified by ×100 (I) and ×200 (J), microvascular density counted as 10.4 per high-power field magnified by ×100 (K) and ×200 (L).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
The mean intensity score of VEGF-A and VEGFR-1 expression and the mean microvascular density in a luteal endometrium obtained from 33 patients with repeated IVF failure. Upper limit bar represents mean + SEM.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions