Health effects of electronic cigarettes Wikipedia Long Term Use of E cigarettes Linked to Respiratory Disease Allergy & Asthma Network E cigarettes raise lung disease risks, but less than smoking: study Dangers of Vaping: Facts and Statistics on Health Risks of E Cigarettes as Lung Illness Causes Teen Deaths Across U.S. Newsweek As vaping illnesses mount, officials warn of dangers of e cigarettes The Commonwealth Times