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They represent the earliest form of e-cigarettes, developed by pharmacist Hon Lik in 2003, first launched in the UK, and entering the US market two years later

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Professor Gerard Hastings, Cancer Research UK's social marketing expert at the University of Stirling and one of the study authors, said: "Our research confirms previous studies that both the pack and the product are powerful marketing tools in the hands of the tobacco industry which it is using to recruit a new generation of smokers

You just slide in the pod and its ready to be vaped