This is amazing, BTW...
"The indications are perhaps 15 to 20 per cent of people may be able to quit using vaping but about 60 to 70 per cent of people continue to smoke and vape at the same time, as opposed to converting to vaping altogether," said Dr. Robert Reid, of the Ottawa Heart Institute, who works at a large smoking cessation program.
His observations build on the findings of a randomized trial on e-cigarettes and nicotine-replacement therapy. The trial published in the New England Journal of Medicine in February looked at users in the United Kingdom, where the strength of nicotine in e-cigarettes are restricted to no more than 20 milligrams per millilitre. Currently, Health Canada's maximum limit is three times higher.