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Figure 1.
In situ hybridization of Egr1 expression in mouse uteri during early pregnancy on days 3 (B), 5 (C), 6 (D), 7 (E), and 8 (F). No hybridization signals were seen in mouse uterus on day 7 of pregnancy when DIG-labeled Egr1 sense probe was used to replace the antisense probe as a negative control (A). D stands for day of pregnancy. Asterisks indicate embryo. Bar = 60 μm.
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