July 19, 1979. Lee P. Tar Reduction and Nicotine Compensation. Lee P. Reduction in Tar Yields and Trends in Male Lung Cancer Rates. Letter to H. Bentley, July 25, 1979. Johnson, AH, Carreras Rothmans Limited.
Market research reports relating to low tar cigarettes.
Letter to H.E. Bentley, Imperial Tobacco, London, July 26, 1979. Letter to D. Beese, July 30, 1979. Cohen A, Roe F. Pharmacology and Toxicology of Nicotine and Its Role in Tobacco Smoking.