Investigation on the origin of the definitive endoderm in the rat embryo.
D000818:Animals; D002454:Cell Differentiation; D046508:Culture Techniques; D004475:Ectoderm / Q000502:physiology; D004622:Embryo, Mammalian / Q000166:cytology / Q000502:physiology*; D004707:Endoderm / Q000502:physiology* / Q000637:transplantation; D006128:Growth; D051381:Rats; D011919:Rats, Inbred Strains; D013724:Teratoma; D014184:Transplantation, Homologous