Table 1.

Events Distribution in CD31 Versus CD18 Dot Plots

Region	Populations	CD31 intensity	CD18 intensity
R1	MSCs and erythroid progenitors	Negative	Negative
R2	Subpopulation of lymphoid cells	Negative	Dim
R3	HSCs, EPCs, small subpopulation of myeloid cells	Intermediate	Negative
R4	Subpopulation of lymphoid cells	Dim	Intermediate
R5	Most of myeloid cells	Intermediate	Bright
R6	Monocytoid cells and macrophages	Bright	Bright
R7	Plasmacells	Bright	Negative
R8	Pop#8	Intermediate–bright	Intermediate

Eight separate regions were identified and characterized by combinations of CD31 and CD18 intensity of expression.

EPCs, endothelial precursor cells; HSCs, hematopoietic stem cells; MSCs, mesenchymal stromal cells.