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Cancer Institute, and Dr. Robert I. Levy, director of the National Heart. Lung and Blood Institute. have reviewed the paper written by Dr. Gori on low tar and nicotine cigarettes.
"We believe," they said in a joint statement, "that Dr. Gori’s conclusions on low tar and nicotine cigarettes rest on assumptions that have not been proved at the present time...
"Many other substances in cigarette smoke may contribute to the damaging effects of smoking in addition to the tar and nicotine content.
"To conclude," they said, "that the risk of smoking cigarettes declines in direct proportion to the extent that tar and nicotine is removed from the smoke is at best premature—and may be
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