E Cigarettes and Vaping PPAC Central Cell specific toxicity of short term JUUL aerosol exposure to human bronchial epithelial cells and murine macrophages exposed at the airliquid interface Respiratory Research Springer Nature Link Do Juul Pods Have Diacetyl FDA warns Juul, says it marketed vapes as less harmful than regular cigarettes without agency authorization The Truths Behind Vaping: Information for Youth and Teens USU Juul to stop sale of fruit flavored e cigarettes silive.com