摘要
Kidswhosmokeliketothinkthattheyareimmortal②-oratleastthatiftheystopintime,theirlungswillheal.Butareportinlastweek'sJournaloftheNationalCancerInstitutesuggestsearlysmokingmaytrigger③changesinDNA④thatputyoungsmokersathigherriskforcancereveniftheylaterquit.Researchersstudyinglungcancerpatientsroundthatthosewiththeworstgenetic⑤damagewerenotthosewhosmokedlongestbutthosewhostartedyoungest.What'smore,theearliertheystarted,themorewerethedamage.
出版日期
2002年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
