5.Taylor R， Najafi F， Dobson A. Meta-analysis of studies of passive smoking and lung cancer： effects of study type and continent. Int J Epidemiol 2007; 36： 1048–1059.
6.Darby S， Hill D， Auvinen A， et al. Radon in homes and risk of lung cancer： collaborative analysis of individual data from 13 European case-control studies. BMJ 2005; 330： 223.
7.IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. World health organization international agency for research on cancer.
8.Zeng H et al. Cancer survival in China， 2003-2005： a population-based study. Int J Cancer. 2015 Apr 15;136(8)：1921-30.
9.Bridgwood et al. Living in Britain： Results for the 1988 General Household Survey 1998.
10.West. Getting serious about stopping smoking-a review of products， services， and techniques. No Smoking Day， 1997.
11.The Tobacco Use and Dependence Clinic Practice Guideline Panel， Staff and Consortium Representatives. A clinical practice guideline for treating tobacco use and dependence： A US Public Health Service report. JAMA， 2000， 283(24)： 3244-3254.