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These filters are often part of high-end or premium cigarette lines

In the laboratory studies, the Francis Crick Institute scientists showed that the same pollutant particles (PM2.5) promoted rapid changes in airway cells which had mutations in EGFR and in another gene linked to lung cancer called KRAS, driving them towards a cancer stem cell like state

However, only 15 percent of those who had tried e-cigarettes were heavy users of the products, defined as those who had used the products for more than 14 days within the past month

Mr Streeting said the new Bill 'will be more ambitious' than the one proposed by the previous government