Medicine: Beyond Any Doubt

For cigarette smokers, famed Surgeon Evarts A. Graham of St. Louis had news last week.

"Dr. Ernest L. Wynder and I have reproduced cancer experimentally in mice by using merely the tars from tobacco smoke. This shows conclusively that there is something in cigarette smoke which can produce cancer. This is no longer merely a possibility. Our experiments have proved it beyond any doubt."

What Dr. Graham stated as proven fact had long been suspected. Beginning in the 1930s, medical statisticians noticed an unusual rise in the number of cases of lung cancer. Part of the apparent increase was due simply to the...

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