"the GPI-80 CV in the CD16(hi) population was correlated inversely with the proliferative ability of T cells and the GPI-80 MFI of the CD33(hi) population was correlated with reactive oxygen species production. These results led us to propose that the pattern of GPI-80 expression in these populations is a simple and useful marker for unusual differentiation which is related to MDSC functions."xsd:string