http://www.humanaondental.org
http://m.cancer.org
www.hardinmd.lib.uiowa.edu/smoking.html
www.health.harvard.edu
www.yourdiseaserisk.wustl.edu
www.mayo.edu/centers-programs/nicotine-dependence
http://www.trdrp.org/fundedresearch/grant_page.php?grant_id=4786.000
https://www.princeton.edu/futureofchildren/publications/journals/article/index.xml?journalid=61&articleid=388§ionid=2629
http://med.stanford.edu/medicalreview/smrp14-16.pdf
http://psy.ed.asu.edu/~aztec/sap.html
www.dosomething.org/tipsandtools/the-truth-about-secondhandsmoke
www.cancer.org/cancer/cancercauses/tobaccocancer/secondhandsmoke
www.trdrp.org/fundedresearch/grant_page.php?grant_id=4786.000
www.1.umn.edu/perio/tobacco/secondhandsmoke.html
http://www.iom.edu
http://www.urmc.rochester.edu
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