Second-hand smoke in four English prisons: an air quality monitoring study.

BMC Public Health · 2016 · PMC4743156 · PMID 26847640

Europe PMC DOI

hedged sentence

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closest p

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boldest claim

The sentences

likely to be significantno p-value reported

Since SHS contains several thousand toxins and many carcinogens [ 2 ], the hazards associated with this exposure are likely to be significant.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.