Hemopoiesis and differentiation.
D000818:Animals; D002454:Cell Differentiation; D003114:Colony-Forming Units Assay; D006410:Hematopoiesis; D006412:Hematopoietic Stem Cells / Q000166:cytology; D006801:Humans; D051379:Mice; D013154:Spleen / Q000166:cytology