References

Carbon monoxide, nitrogen oxides, hydrogen cyanide and ammonia are all present in cigarette smoke

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10. Stillwell & Gladding Testing Laboratories. (April 19, 1993) Cigarette smoking tests using Accudrop (=NicoBloc) filter solution.

11. Pickworth, W.B., Fant, R.V., Nelson, R.A. & Henningfield, J.E. (1998) Effects of cigarette smoking through a partially occluded filter. Pharmacology, Biochemistry and Behavior, 60, 817-821.

12. Gariti, P. & Alterman, A. (1997) Testing a smoking cessation aid. College on Problems of Drug Dependence. 59th Annual Meeting. Nashville TN June 1997. In: L.S. Harris (ed), Problems of Drug Dependence. NIDA Research monograph 178. p.158.

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