1. Cancer Facts and Figures—1997;Anonymous,1997
2. Estimates of the worldwide incidence of eighteen major cancers in 1985;Parkin;Int. J. Cancer,1993
3. Cancer Incidence in Five Continents;Parkin,1992
4. Worldwide epidemiological patterns of lung cancer in nonsmokers;Koo;Int. J. Epidemiol.,1990
5. Lung cancer and cigarette smoking;Wu-Williams,1994