Vaping: Know the Dangers Rady Children's Health Vaping May Increase Respiratory Disease Risk by More Than 40 Percent SPH New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Global youth vaping and respiratory health: epidemiology, interventions, and policies npj Primary Care Respiratory Medicine Impact of vaping on respiratory health The BMJ E Cigarettes and Pregnancy Maternal Infant Health CDC