4Ferlay J, Shin HR, Bray F, et al. Estimates of worldwideburden of cancer in 2008[ J]. Int J Cancer,2010,127(12) : 2893.
5Jemal A, Tiwari RC, Murray T, et aZ. Cancer statistics[J] . CA Cancer J Clin, 2004,54 (1): 8.
6Kexin C, Peizhong PW, Baocun S, et al. Twenty - year secularchanges in sex specific lung cancer incidence rates in an urbanChinese population[J]. Lung Cancer, 2006, 51 (1): 13.
7Aqudo A, Ahrens W,Benhamon E, et al. Lung cancer andcigarette smoking in women : a multicenter case - control studyin Europe[J]. Int J Cancer, 2000, 88 (5) ; 820.
8Liu Y,Inoue M, Sobue T, et al. Reproductive factors, hor-mone use and the risk of lung cancer among middle - aged nev-er -smoking Japanese women : a large - scale population -based cohort study[J] . Int J Cancer, 2005, 117: 662.
9Kexin C, Peizhong PW, Baocun S,et al. Twenty - year secularchanges in sex specific lung cancer incidence rates in an urbanChinese population[J]. Lung Cancer, 2006, 51 (1): 13.
10Danaei G, Vander Hoorn S, Lopez AD, et al. Causes ofcancer in the world : comparative risk assessment of nine be-havioral and environmental risk factors[ J]. Lancet,2005,366 (9499) : 1784.
