Figure 2: Positive relationship between UC blood volume and viable leucocytes. Positive relationship between UC blood volume and viable CD34+HPCs (r= 0.45, P<0.0001). Positive relationship between viable leucocytes and viable CD34+HPCs (r= 0.66, P<0.0001). Positive relationship between viable monocytes and viable CD34+HPCs (r= 0.68, P<0.0001).