In some instances smoking and other aetiological agents may also be confounded, as with the consumption of alcohol,31 various aspects of personality,32,33 and perhaps some aspects of diet.34,35 Indeed, for a few causes of death the confounding between smoking and other factors may account for virtually all the observed association with smoking, in which case none of the excess mortality from those causes should be attributed to the habit
This concern originated due to the inclusion of diacetylin some e-cigarette flavours in the past, albeit at a level hundreds of times lower than in cigarette smoke
P., & Yu, J
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Needless to say, the smell affects the atmosphere of your home instantly, and is especially obvious and unpleasant to guests who dont smoke