Flow cytometric representation of morphological and fluorescent 1 (FL 1) signal of platelets. (No gate). Density plots of ungated platelets from normal and thrombocytopenic horses. A set of panels displaying the FSC × SSC density plot of platelets derived from three healthy horses are shown in the right panels of figure 1a. The left set of panels of figure 1b represents the FSC × SSC density plots of thrombocytopenic animals. The gates R1, R2 and R3 are showed in each panel.