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. 2007 Mar 5;7:40. doi: 10.1186/1471-2407-7-40

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Copyright © 2007 Jiang et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Both gross and microscopic changes in SD rats' tongues mucosas. A. Normal mucosa of tongue base at 6^thweek (gross observation and HE ×200); B. Epithelial dysplasia of tongue base at 24^thweek (gross observation and HE ×200); C. Squamous cell carcinoma of tongue base at 36^thweek (gross observation and HE ×200). T represents tongue.