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Histological and immunohistochemical characterization of patient's native trachea biopsy. Movat's Pentachrome staining shows pseudostratified airway epithelium with mucus-producing cells (arrows in A). Arrows in (B–D, and F) exemplarily indicate CK 5-, CK 18-, beta-Tubulin-, and vWF-immunoreactive areas. No myosin-positive cells were found (E). All scale bars: 50 μm.
