E liquids and vanillin flavoring disrupts retinoic acid signaling and causes craniofacial defects in Xenopus embryos ScienceDirect E Cigarettes Vaping with Juul & Other Electronic Cigarettes Nose Only Exposure to Cherry and Tobacco Flavored E Cigarettes Induced Lung Inflammation in Mice in a Sex Dependent Manner Exposure to third hand e cigarette vapour impairs cognitive function in young mice ScienceDirect What chemicals are in a cigarette? What does smoking do to your body? Cancer Research UK