Scientists are still working to more fully understand the health effects and harmful doses of e-cigarette contents when they are heated and turned into an aerosol, both for users who inhale from a device and for those who are exposed to the aerosol secondhand
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This chronic restriction is one of the most common physical causes of long-term erectile dysfunction

Over objections from the authors and others [69], the publisher elected to retract that prior article, based on a concern voiced by an unnamed member of their editorial board over the cut-off year between the pre- and e-cigarette eras, despite the fact that the paper itself explored a range of possible cut-offs, and further sensitivity analyses were provided in response to the editorial board members concern [70, 71]. We have provided further details in comments on PubPeer at and we have made all correspondence with the previous journal and publisher available on OSF at Data availability The datasets supporting the conclusions of this article are freely available in the National Health Interview Survey (NHIS) repository, Abbreviations CDC: US Centers for Disease Control and Prevention FSPTCA: Family Smoking Prevention and Tobacco Control Act NHIS: National Health Interview Survey RMSE: Root Mean Square Error References Zhu S-H, Zhuang Y-L, Wong S, Cummins SE, Tedeschi GJ

Some states have fully legalized marijuana for both medical and recreational use, while others have more restrictive laws