1. Seminars in Respiratory Medicine. Vol.5;WM Abraham,1984
2. Adams JD, O’Mara-Adams KJ, Hoffmann D. Toxic and carcinogenic agents in undiluted mainstream smoke and sidestream smoke of different types of cigarettes. Carcinogenesis, 1987;8:729–731.
3. Adelkofer F, Sherer G, Wenzel-Hartung R, Brune H, Thomas C. “Exposure of Hamsters and Rats to Sidestream Smoke of Cigarettes.” In Indoor and Ambient Air Quality, R Perry, PW Kirk, eds. London: Selper Ltd., 1988, pp. 252–258.
4. Albert RE, Berger J, Sanborn K, Lippmann M. Effects of cigarette smoke components on bronchial clearance in the donkey. Arch. Environ. Health, 1974;29:96–101.
5. Albert RE, Lippmann M, Peterson HT. The Effects of Cigarette Smoking on the Kinetics of Bronchial Clearance in Humans and Donkeys.“ In Inhaled Particles, WH Walton, ed. Old Woking, England: Unwin, 1971, pp 165–182.