2003l-872 adolescent adverseeffects causes cigarettehabit complications control death demography drugcontrol epidemiology healthaspects healthpolicy internationalcooperation jurisprudence legislation men mentaldisorders methods mortality neurodegenerativediseases nicotine physiologicaleffect policymaking prevention psychology research riskassessment smoking smokingcessation smokingcessationprograms statistics therapeuticuse therapy tobacco tobaccohabit tobaccoindustry tobaccoproducts tobaccouse tobaccousedisorder toxicity toxicology treatment unitedstates wa320 wa900p941o1970 wm290g618t1995 wm290t6712003 youngadult