1. Joint Report of the Study Group on Smoking and Health;Smoking, & Health;Science,1957
2. Tobacco smoking and cancer of the lung;Medical Research Council;Brit M J,1957
3. House of Representatives, 85th Congress,;Hearings before a Subcommittee of the Committee on Government Operations;First Session,1957
4. L’enquette francaise sur l’etiologie du cancer broncho-pulmonaire: role du tabac;Schwartz;La Semaine des Hopitaux de Paris,1957
5. An epidemiological study on cancer in Japan;Segi;Gann,1957