Figure 3
From: Imaging Cytometry of Human Leukocytes with Third Harmonic Generation Microscopy

THG sectioning images (magenta) of various leukocytes in a blood smear, positive-labeled and negative-labeled cells.
Target cells emit FITC fluorescence (green) in the positive-labeled group, but they lack fluorescence in the negative-stained group. Scale bars: 5 μm.