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File:IPLab2Metaplasia7.jpg

140 bytes added, 15:45, 19 August 2013
This is a photomicrograph of the trachea from a smoker. Note that the columnar ciliated epithelium has been replaced by squamous epithelium.
This is a photomicrograph of the trachea from a smoker. Note that the columnar ciliated epithelium has been replaced by squamous epithelium.

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