title: Changes in the  properties of the developing trophoblast of preimplantation mouse embryos as revealed by aggregation studies.
mesh_terms: D000818:Animals; D002449:Cell Aggregation; D002454:Cell Differentiation; D004622:Embryo, Mammalian / Q000502:physiology*; D047108:Embryonic Development; D005260:Female; D051379:Mice; D011247:Pregnancy; D013997:Time Factors; D014327:Trophoblasts / Q000502:physiology*