The expression of the CD164(103B2/9E10) epitope on peripheral blood lymphoid subsets. Peripheral blood mononuclear cells were labeled with the 103B2/9E10 MoAb or with an IgG₃negative control MoAb plus the FITC-conjugated MoAbs indicated before counterstaining with PE-conjugated anti-mouse IgG₃. Lymphoid cells were gated on low forward and low side scatter gates before analysis on the FACSCalibur.