E-cigarettes are good or bad depending on the study – so what's the truth?

E-cigarettes are good or bad depending on the study – so what's the truth?  Medical Xpress I Started Vaping to Quit Smoking, and It Was a Huge Mistake  menshealth.com Philip Morris stop-smoking campaign attacked as PR stunt  Firstpost Vaping won't stop smouldering tobacco demand  Business DayFull coverage

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