According to the press release: "The ERS agrees with the recent report from the World Health Organization (WHO) and is opposed to the use of unregulated e-cigarettes. While the short-term negative impact on health appears not as great as tobacco cigarettes, the long-term effects of e-cigarettes are not known. As a Society grounded in scientific principles, ERS believes that the precautionary principle should be applied when scientific evidence is inconclusive and insufficient."

2. The regulations require pre-approval (or substantial equivalence determinations) for all new electronic cigarette products.

The authors admit this in the paper. They write: "This is a cross-sectional study, which only allows us to identify associations, not causal relationships."

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