The FDA needs to authorize the e-cigarettes that meet it standards, she said, and take enforcement actions against the ones that dont
The trumpet-shaped corolla is white, or the tube may be greenish with the white, flaring limb up to 1.4 cm wide when expanded
This study has identified smoking as one of those risk factors
These products rely entirely on leaf quality, fermentation, and blendingno additives or flavorings to mask the experience
This is a preview of subscription content, access via your institution Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 27,99 / 30 days cancel any time Subscribe to this journal Receive 12 print issues and online access 176,64 per year only 14,72 per issue Buy this article Purchase on SpringerLink Instant access to the full article PDF