title: Incorporation of teratocarcinoma stem cells into blastocysts by aggregation with cleavage-stage embryos.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000502:physiology*; D002449:Cell Aggregation; D002454:Cell Differentiation; D002460:Cell Line; D005260:Female; D051379:Mice; D013724:Teratoma / Q000503:physiopathology*