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buccal smear

 

Definition: a cytologic smear containing material obtained by scraping the lateral buccal mucosa above the dentate line, smearing, and fixing immediately; used principally for determining somatic sex as indicated by the presence of the sex chromocenter (Barr body).

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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