One US congressman told executives that they were not "men of integrity" for selling the products.
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Vaping
Tobacco warning
The Today programme's business presenter tweets:
Derriford Hospital in Devon will remain "tobacco-free", but will allow vaping in the grounds.
Read moreMarlboro-maker Altria says its stake in Juul is now worth less than a third of what it paid for it.
Read moreThe cases are being investigated by the body that regulates e-cigarettes in the UK.
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The ban applies to mint and fruit flavours offered in cartridge-based form.
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Jane Wakefield
Technology reporter
British American Tobacco and three other vaping companies have posts promoting e-cigarettes banned.
Read moreIs vaping safe?
After deaths in the US and bans around the world, how risky are e-cigarettes? In some countries, smokeless cigarettes are all the rage. In the UK, doctors say if smokers switch from tobacco to e-cigarettes, it will save lives. But in the US, where the authorities are investigating an outbreak of lung injury linked to vaping, they’re advising vapers to consider stopping. In India, Mexico and dozens of other countries, vaping is banned altogether. It’s a confused international picture. Vaping is still relatively new and scientists are still researching how harmful it may be in the long-term. What we do know is that every year, eight million people die worldwide as a consequence of smoking tobacco. What are the potential health risks associated with vaping? We’ll find out from our expert witnesses, who include a neuroscientist, a pulmonary critical care doctor and a professor of nicotine and tobacco studies. (A young woman smoking an electronic cigarette at the vape shop. Credit: Getty images)
Canadian doctors who treated the teen say the injury is unlike vaping-related illnesses in the US.
Read moreThe vaping firm is accused of targeting youth and misrepresenting the safety of its products.
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