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Region-specific uterine induction of COX-2 in mice during the periimplantation period. Immunohistochemistry was employed to determine COX-2 protein localization in the pregnant uterus. Photomicrographs of representative cross uterine sections are shown (100X). le, luminal epithelium; ge, glandular epithelium; s, stroma; myo, myometrium; bl, blastocyst; em, embryo; IS, implantation site; Inter-IS, interimplantation site; M, mesometrial site; AM, anti-mesometrial site.
