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                                                Epithelial cell
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                                                An epithelial cell (big cell in centre, bottom) seen at urinary phase-contrast microscopy. A bacillus (comma-shaped black bean in left upper corner) can also be seen. 
 
Image courtesy of Steven Fruitsmaak, via Wikimedia Commons.  
 
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". 
 
A link to the license is available at Licenses and Credits. 
 
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