title: Ultrastructure of the process of secretion in the rat uterine epithelium at preimplantation.
mesh_terms: D000818:Animals; D002369:Castration; D010064:Embryo Implantation; D004847:Epithelial Cells; D004848:Epithelium / Q000378:metabolism; D005260:Female; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D051381:Rats; D014599:Uterus / Q000166:cytology* / Q000378:metabolism
chemical_list: D011374:Progesterone