Hematopoietic stem cells.
D000818:Animals; D001854:Bone Marrow Cells; D002454:Cell Differentiation; D002999:Clone Cells; D003114:Colony-Forming Units Assay; D004285:Dogs; D006402:Hematologic Diseases / Q000503:physiopathology; D006410:Hematopoiesis; D006412:Hematopoietic Stem Cells / Q000166:cytology / Q000502:physiology*; D006801:Humans; D051379:Mice; D008954:Models, Biological; D013154:Spleen / Q000166:cytology; D013950:Thymus Gland / Q000166:cytology