title: Delayed implantation in the Mongolian gerbil, Meriones unguiculatus.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000502:physiology; D010064:Embryo Implantation; D005260:Female; D005849:Gerbillinae / Q000502:physiology*; D005865:Gestational Age; D010053:Ovary / Q000502:physiology; D010063:Ovum; D011247:Pregnancy; D013997:Time Factors; D014599:Uterus / Q000502:physiology