between 20 % and 30 % of transplantable hemopoietic stem cells has been recovered in approximately 1 % of total nucleated cells from the starting preparation , and enrichments of 25- to 30-fold have been achieved permitting hemopoietic reconstitution of lethally irradiated host mice with as few as 400 donor cells .
C0018956
hemopoietic stem cells
C0007634
cells