Progenitor cells from which all blood cells derived. They are found primarily in the bone marrow and also in small numbers in the peripheral blood.

Synonyms: Hematopoietic Progenitor Cell, Hematopoietic Colony-Forming Units, Colony Forming Units, Hematopoietic, Progenitor Cells, Hematopoietic, Cells, Hematopoietic Progenitor, Progenitor Cell, Hematopoietic, Colony-Forming Units, Hematopoietic, Unit, Hematopoietic Colony-Forming, Cell, Hematopoietic Progenitor, Colony-Forming Unit, Hematopoietic, Cell, Hematopoietic Stem, Stem Cells, Hematopoietic, Hematopoietic Stem Cell, Hematopoietic Colony-Forming Unit, Units, Hematopoietic Colony-Forming, Stem Cell, Hematopoietic, Cells, Hematopoietic Stem, Hematopoietic Progenitor Cells, Hematopoietic Stem Cells