If they only knew then what we know now.
sad thing is--they did--but covered it up for another couple of decades.
here's a half dozen studies linking smoking cigarettes to cancer as early as 1939--interstingly the big jump in cancer rates came with the shift from pipe smoking to mass manufactured cigarettes.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC437139/
2. Müller FH. Tabakmissbrauch und lungencarcinoma. Zeitschrift Krebsforsch 1939;49: 57-85.
3. Schairer E, Schöniger E. Lungenkrebs und Tabakverbrauch. Zeitschrift Krebsforsch 1943;54: 261-69.
4. Wassink WF. Onstaansvoorwasrden voor Longkanker. Ned Tijdschr Geneeskd 1948;92: 3732-47.
5. Doll R, Hill AB. Smoking and carcinoma of the lung. BMJ 1950;221(ii): 739-48.
6. Doll R, Hill AB. A study of aetiology of carcinoma of the lung. BMJ 1952;225(ii): 1271-86.
7. Wynder EL, Graham EA.
tobacco smoking as a possible etiologic factor in bronchogenic carcinoma. JAMA 1950;143: 329-36.
8. Levin MI, Goldstein H, Gerhardt PR. Cancer and
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