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Histopathology of newborn CFTR+/+ and CFTR−/− pig sinus epithelia are similar. Hematoxylin and eosin stains of CFTR+/+ respiratory (A) and olfactory (B) epithelia show no differences to CFTR−/− respiratory and olfactory epithelia in regard to structure, inflammation, or remodeling. Bars: 29 μm.
