Vaping danger Stanford Medicine Smoke and Mirrors: Does Vaping Make It Easy to Hide Drug Use? Michael's House Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Vaping Raises the Risk of Respiratory Disease, Study Says The Effects of Smoking and Vaping on Fertility Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times