1. Smoking and health, a report of the Surgeon General;Department of Health, Education, and Welfare,1979
2. A Canadian study of mortality in relation to smoking habits: a preliminary report;Best;Canad J Pub Health,1961
3. Lung cancer and other causes of death in relation to smoking; a second report on the mortality of British doctors;Doll;Br Med J,1956
4. Mortality of British doctors in relation to smoking: observation on coronary thrombosis;Doll,1966
5. Smoking in relation to the death rates of one million men and women;Hammond,1966