Tobacco Control Chronic Disease Prevention & Health Promotion Division Electronic Cigarettes E cigarette use to reduce cigarette smoking may not increase nicotine dependence Penn State Health News E cigarettes: How they work, risks, and research E cigarettes can produce more formaldehyde than regular cigarettes, study says Los Angeles Times Comparing Traditional Cigarettes with E Cigarettes The Maher Law Firm Feds Seize $33M in Illegal E cigarettes RT