![shutterstock_32414035 - Betel leaf](https://www.nationalelfservice.net/cms/wp-content/uploads/2013/02/shutterstock_32414035-150x150.jpg)
This review of the links between the habit of betel quid and areca nut (BQ-AN) chewing and the prognosis of oral cancer included 11 observational studies. The findings suggest that lower 5-year survival is seen in those with a BQ-AN chewing habit.
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