A spokesperson from one of the leading national anti-smoking groups commented: "The more things change, the more they stay the same. This just goes to show that the tobacco industry is still able to unduly influence medical research reporting, even if they are not currently paying their consulting scientists. These conflicts of interest were firmly established in the past and the conflicted scientists continue to do the tobacco industry's bidding."

The problem is that in this cross-sectional study, there is no way to determine the direction of the observed relationship.

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