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"I hear that quite a bit

A recent study was done in Taiwan where they followed smokers and non-smokers over an 18 year period

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2020;318(5):L106373

TSNA levels were measured by liquid chromatography tandem mass spectrometry (LC-MS/MS) using an API 5000 triple quadrupole MS/MS (Applied Biosystems, Warrington, UK) in positive ESI mode, with a mass/charge ( m / z ) range of 51250

A few months earlier, the companys share price had soared by 147% after its January listing on the New York Stock Exchange