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. 2013 Mar 4;11:17. doi: 10.1186/1477-7827-11-17

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Copyright ©2013 Zhang et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Immunostaining of DKK1 in the placental tissue sections from normal and severe preeclampsia groups. Figure 4 A1 and A3 show the immunostaining of the DKK1 in normal control (N) group; A2 and A4 show the immunostaining of the DKK1 in severe preeclampsia (sPE) group. The staining intensity of DKK1 in the placental tissue of the severe PE group (A2 and A4) was greater than the control group (A1 and A3). B1 and B2: serial sections of A3 and A4 stained with HLA-G. STB = syncytiotrophoblast, EVT = extravillous trophoblast. Original magnification: 400× for A1 and A2, 200× for A3, A4, B1, B2.