Dry eye induced by exposure to cigarette smoke pollution: An in vivo and in vitro study ScienceDirect Ask an expert: Are e cigarettes 'safe'? University of Iowa Health Care Smoke and mirrors? Vaping firms echo cigarette ads Smoke without fire: What's the truth on e cigarettes? New Scientist E Cigarette Use Increases Uveitis Risk, Study Finds European Tobacco Harm Reduction Advocates Dr Lund corrects the misinformation in Dagens Nringsliv's recent vaping article