title: Ultrastructure of implantation.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000648:ultrastructure*; D002478:Cells, Cultured; D010064:Embryo Implantation; D004717:Endometrium / Q000648:ultrastructure; D004848:Epithelium / Q000648:ultrastructure; D005260:Female; D006801:Humans; D051379:Mice; D008855:Microscopy, Electron, Scanning; D011247:Pregnancy; D051381:Rats; D014327:Trophoblasts / Q000648:ultrastructure; D014599:Uterus / Q000648:ultrastructure