Chulasiri, P.U.Gunawardana, N.S.De Silva, A.2019-02-272019-02-272017-03The Ceylon Medical Journal, 62(1):p.25-28https://dl.nsf.gov.lk/handle/1/24413TobaccoSmokingEver smokerLung cancerOdds ratioSmoking and lung cancer risk in Sri Lankan men: a case-control studyArticle