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```Cancer Research UK said: ‘Studies show that levels of key harmful chemicals are lower in people who switch from tobacco to e-cigarettes. There are still some questions about long-term safety, as e-cigarettes haven’t been around that long.
‘But the evidence is pointing towards them being far less harmful than tobacco.
‘In terms of safety, e-cigarettes are likely far closer to nicotine replacement therapy (NRT). NRT has long been known as a much safer alternative to smoking.’```
