Sigarilyo: Pagkakaiba sa mga binago
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* ''Smoke: A Global History of Smoking'' (2004) edited by Sander L. Gilman and Zhou Xun ISBN 1-86189-200-4
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articlerender.fcgi?tool=pubmed&pubmedid=15213107 Mortality in relation to smoking: 50 years' observations on male British doctors]
* [http://www.cdc.gov/tobacco/search/index.htm US Center for Disease Control - Smoking and Health Database]
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