Tobacco Did you know #vaping liquids contain formaldehyde and metals? What else isn't the vaping industry not telling you? Facebook Formaldehyde levels in e cigarettes were previously 'underestimated', researchers find The Pharmaceutical Journal Cigarette lectronique : des produits cancrignes seraient inhals par les consommateurs Don't do vape, bro! A qualitative study of youth's and parents' reactions to e cigarette prevention advertisements ScienceDirect Une tude controverse met en cause la cigarette lectronique