title: Definitive erythropoiesis in chicken yolk sac.
mesh_terms: D000650:Amnion / Q000166:cytology / Q000196:embryology; D000818:Animals; D049109:Cell Proliferation; D002642:Chick Embryo; D042783:Endothelial Cells / Q000166:cytology / Q000378:metabolism; D015672:Erythroid Precursor Cells / Q000166:cytology / Q000378:metabolism*; D004920:Erythropoiesis / Q000502:physiology*; D050982:GATA1 Transcription Factor / Q000096:biosynthesis*; D018507:Gene Expression Regulation, Developmental / Q000502:physiology*; D015017:Yolk Sac / Q000166:cytology / Q000196:embryology*
chemical_list: D050982:GATA1 Transcription Factor