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FRA-1 expression in mouse uterine stromal cells during in vivo decidualization. Uterine cross-sections were obtained from mice on different days of pregnancy (a–c). Immunohistochemical analysis was performed against FRA-1 on day 5 (a), day 6 (b), and day 7 (c) of gestation. AM indicates antimesometrial region of the uterus.
