title: Some comparative aspects of implantation.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000502:physiology; D002415:Cats; D002417:Cattle; D006224:Cricetinae; D004285:Dogs; D010064:Embryo Implantation; D005187:Fallopian Tubes / Q000254:growth & development; D005260:Female; D006168:Guinea Pigs; D000882:Haplorhini; D006801:Humans; D008322:Mammals / Q000196:embryology*; D051379:Mice; D011247:Pregnancy; D011817:Rabbits; D051381:Rats; D014327:Trophoblasts / Q000502:physiology; D014599:Uterus / Q000502:physiology