title: Transient nature of early haematopoietic spleen colonies.
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D006410:Hematopoiesis; D006412:Hematopoietic Stem Cells / Q000166:cytology*; D051379:Mice; D011828:Radiation Chimera; D013154:Spleen / Q000166:cytology*; D013997:Time Factors