How Tobacco, Vaping, and Smokeless Products Affect Cancer Risk Smoking and Vaping National Institute of Environmental Health Sciences Vaping likely to cause cancer: New research warns A major review led by researchers at UNSW Sydney says nicotine vaping may be linked to both lung cancer and oral Chemical characterisation of the vapour emitted by an e cigarette using a ceramic wick based technology Scientific Reports Which Smoking Habit Puts You Most at Risk? WHO estimates at least 15 million teenagers use e cigarettes worldwide Reuters