Betel quid without tobacco as a risk factor for oral precancers
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PII: S1368-8375(04)00022-3
doi:10.1016/j.oraloncology.2004.01.005
© 2003 Elsevier Ltd. All rights reserved.
PII: S1368-8375(04)00022-3
doi:10.1016/j.oraloncology.2004.01.005
© 2003 Elsevier Ltd. All rights reserved.