Subscribe to BBC News www.youtube.com/bbcnews BBC News programme Inside Out goes to the lab to investigate what is in e-cigarettes while we unwrap the arguments surrounding them. Subscribe to BBC News HERE http://bit.ly/1rbfUog Check out our website: http://www.bbc.com/news Facebook: http://www.facebook.com/bbcworldnews Twitter: http://www.twitter.com/bbcworld Instagram: http://instagram.com/bbcnews

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