Abstract
THE presence of free radicals in cigarette smoke was demonstrated by Lyons et al.1,2, who trapped cigarette smoke condensate at low temperatures and examined it for unpaired electrons using electron spin resonance (ESR) techniques.
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BLUHM, A., WEINSTEIN, J. & SOUSA, J. Free Radicals in Tobacco Smoke. Nature 229, 500 (1971). https://doi.org/10.1038/229500a0
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DOI: https://doi.org/10.1038/229500a0
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