Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleSmoking Reduction and Lung Cancer Risk.AuthorsBerger, JeffreyAbstractThe letter to the editor criticizes Dr. Godfredsen and colleagues' observational study that suggests a causal link between smoking reduction and lung-cancer risk.SubjectsLETTERS to the editor; RESEARCH methodologyPublicationJAMA: Journal of the American Medical Association, 2006, Vol 295, Issue 9, p1001ISSN0098-7484Publication typeLetterDOI10.1001/jama.295.9.1001-a