Identification and characterization of three classes of erythroid progenitors in  human fetal liver.
D000328:Adult; D001854:Bone Marrow Cells; D002448:Cell Adhesion; D002453:Cell Cycle; D003114:Colony-Forming Units Assay; D004247:DNA / Q000096:biosynthesis; D004305:Dose-Response Relationship, Drug; D004921:Erythropoietin / Q000494:pharmacology; D005260:Female; D005333:Fetus / Q000166:cytology*; D006801:Humans; D007231:Infant, Newborn; D008099:Liver / Q000166:cytology*; D011247:Pregnancy; D013997:Time Factors
D004921:Erythropoietin; D004247:DNA