There's concerns an on-the-fence smoker may not switch to vaping, after an Australian study suggested it causes cancer.
The new research from New South Wales University finds nicotine-based vapes are likely to cause it in the lung and mouth.
Former World Health Organisation director, Robert Beaglehole, labels that misleading - saying it's proven to be less harmful.
He says the likes of apple and orange juice are linked to cancer, because of the other factors, not the juice itself.
He says it grabs headlines.
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