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Immunofluorescence staining of longitudinal sections from the fimbrial end of normal human FT samples. Ciliated cells containing MCC (arrows) and secretory cells containing primary cilia (arrowheads) were identified using polyglutamylated tubulin (red; a marker of ciliary axonemes in both MCCs and primary cilia). Nuclei were counterstained with DAPI (blue). Scale bars = 20 μm.
