Macau wants to ban possession and consumption of e cigarettes Vaping May Be More Dangerous Than Cigarette Smoking, Studies Show University Hospitals What is vaping? What are e cigarettes? Is it as harmless as it is made out to be? The truth is many e cigarettes contain nicotine, a highly addictive substance that can affect brain Frontiers Beyond the label: current evidence and future directions for the interrelationship between electronic cigarettes and mental health