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To the Editor:—
There is statistical evidence that pulmonary carcinoma is more likely to occur in cigarette smokers than in nonsmokers or smokers of cigars or pipes.There is also statistical evidence that in two rather large groups of people in England, who had comparable smoking habits, carcinoma of the lung was much more common among those who lived in London amid the fumes of burning petroleum than among those who lived in a rural environment.I think that it was during or about the time of World War II, that manufacturers began the production of really practical cigarette lighters which burn petroleum products. At about that time the lighters came into extensive use. It was also since then that the vociferous minority of nonsmokers began to pile up their anticigarette statistics.From the nature of their smokes, cigarette smokers have to light their smokes more often than cigar smokers.
Tunstall C. A Question About Smoking. JAMA. 1965;194(7):832. doi:10.1001/jama.1965.03090200140035