title: Heterosis in survival of transferred mouse embryos.
mesh_terms: D000818:Animals; D004624:Embryo Transfer / Q000662:veterinary*; D005298:Fertility; D006823:Hybrid Vigor; D006824:Hybridization, Genetic; D051379:Mice / Q000502:physiology*; D008810:Mice, Inbred C57BL; D013047:Specific Pathogen-Free Organisms