For more information on health equity, visit www.fda.gov/healthequity
These will usually also need to be replaced periodically
We wanted to find out if smoking plays the same role in all subtypes, or if some groups are more vulnerable than others, Emmy Keysendal, a PhD student at the Institute of Environmental Medicine, Karolinska Institutet, Sweden, and the first author of this study, told Medical News Today
Post inspectors have a long list of signs and tells that help them determine if a package could contain marijuana or other illicit substances
But no evidence exists that these cigarettes are significantly less dangerous for the user
Although e-cigarettes are less harmful than conventional cigarettes, they still contain a number of harmful substances that should be avoided, Dr Jongenelis said