title: Isolation of two erythropoietic cell populations from the early chick blastodisc and the further resolution of one into two essential subpopulations.
mesh_terms: D000818:Animals; D001973:Bromodeoxyuridine / Q000494:pharmacology; D002449:Cell Aggregation; D002452:Cell Count; D002499:Centrifugation, Density Gradient; D002642:Chick Embryo / Q000502:physiology*; D004920:Erythropoiesis; D006454:Hemoglobins / Q000096:biosynthesis*
chemical_list: D006454:Hemoglobins; D001973:Bromodeoxyuridine