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Alvan R. Feinstein, MD
New Haven, Conn

JAMA. 1970;213(1):131.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor:—

Having initiated the study of cigarette smoking and histologic morphology in patients with lung cancer that was "reported" in THE JOURNAL (211:2081, 1970), I regret its premature publication in your MEDICAL NEWS section.

Your report was based on material presented at the recent meeting of the American Association of Pathologists and Bacteriologists by Dr. Raymond Yesner, who collaborated in this project and recorded many of the histologic findings. The results presented at that meeting were based on a preliminary analysis of the data, and they contain only Dr. Yesner's interpretations of those data.

The final report may show differences in the percentages because new statistical tabulations have been necessitated by a recent change in the criteria used for consolidation of histologic categories. Even if the percentages remain unchanged, however, I disagree with the interpretation that heavier smoking "caused" greater degrees of malignancy in lung cancer. The . . . [Full Text PDF of this Article]

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