Haemopoietic progenitor cells in peripheral blood.
D000818:Animals; D001769:Blood; D002469:Cell Separation; D003114:Colony-Forming Units Assay; D004285:Dogs; D006412:Hematopoietic Stem Cells; D006801:Humans; D007962:Leukocytes; D008215:Lymphocytes, Null; D051379:Mice; D010215:Papio; D013154:Spleen / Q000166:cytology