Influence of smoking cessation after diagnosis of early stage lung cancer on prognosis: systematic review of observational studies with meta-analysis.
OBJECTIVE: To systematically review the evidence that smoking cessation after diagnosis of a primary lung tumour affects prognosis. DESIGN: Systematic review with meta-analysis. DATA SOURCES: CINAHL (from 1981), Embase (from 1980), Medline (from 1966), Web of Science (from 1966), CENTRAL (from 1977) to December 2008, and reference lists of included studies. STUDY SELECTION: Randomised controlled trials or observational longitudinal studies that measured the effect of quitting smoking after d...Expand abstract
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