title: Embryo growth and differentiation factors in embryonic sera of mammals.
mesh_terms: D000818:Animals; D001681:Biological Assay; D001755:Blastocyst / Q000166:cytology / Q000502:physiology*; D002417:Cattle; D002454:Cell Differentiation; D005312:Fetal Blood / Q000502:physiology*; D006133:Growth Substances / Q000302:isolation & purification*; D006801:Humans; D051379:Mice; D008970:Molecular Weight; D015017:Yolk Sac / Q000502:physiology
chemical_list: D006133:Growth Substances