Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn Tobacco Smoke, Vaping, and Asthma AAFA.org Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Second Hand Smoke and Pregnancy American Pregnancy Association Secondhand Vape Exposure: Effects, Who's at Risk, and More What Chemicals Are Present in Secondhand Vape Emissions?