Why?

And even if vaping involved deeper inhalation than smoking, how would that demonstrate that vaping is more dangerous than smoking, especially since the vaper is inhaling far fewer carcinogenic chemicals - and at far lower levels - than the smoker?

1. Between 2003 and 2008, one of the authors performed consultation services for R.J. Reynolds and Lorillard and conducted research at his medical school which was funded by R.J. Reynolds, Brown & Williamson, and Liggett. The total annual amount of his consulting payments from Big Tobacco was as high as $40,000. While the amount of grant funding received from tobacco companies is not clear, one of the anti-smoking groups has documented that the level of funding in 2005 was $400,000 and in 2004 was $1 million.

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