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By December 2023, the FDA had issued more than 400 warning letters to retailers for the sale of unauthorized e-cigarettes and filed civil money penalty complaints against more than 65 retailers and manufacturers for the manufacture or sale of the products

Methods An internet survey of 160 young Australian adult ever-smokers who were shown computer images of three sets of cigarette sticksfive sticks of different lengths and diameters (set A), five sticks with different tipping paper design (set B) and four sticks of different decorative design (set C)

However, when the FDA announced the new risk claim for the 20 ZYN products, it also said that if there is a significant increase in youth uptake, the agency could withdraw the order

Sample size also varied substantially between studies, ranging from 59 to 90 627, suggesting that some smaller studies may be inadequately powered

The effects of e-cigs on BP, however, remain unknown