Definitions for oroantral fistula
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U.S. National Library of Medicine
Oroantral Fistula
A fistula between the maxillary sinus and the oral cavity.
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"oroantral fistula." Definitions.net. STANDS4 LLC, 2013. Web. 21 May 2013. <http://www.definitions.net/definition/oroantral fistula>.

