preservation of hematopoietic progenitors was observed after treatment of bone marrow , with stem cell recovery averaging 83 +/- 26 % for burst-forming units ( erythroid ) , 86 +/- 14 % for granulocyte-macrophage progenitors and 94 +/- 16 % for granulocyte , erythroid macrophage , and megakaryocitic elements .
C0018957
hematopoietic
C0005953
bone marrow