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. 2009 Feb 19;7:16. doi: 10.1186/1477-7827-7-16

Figure 1.

Figure 1

A) Immunohistochemical staining (brown with blue hematoxylin counterstain) showing IgA from CD serum binding at the syncytial (maternal) surface of term placenta; B) binding is abolished by preincubation of serum with recombinant tissue transglutaminase; C) negative control serum fails to stain. Scale bar: 250 μm (a, c), 60 μm (b).