E cigarettes: How they work, risks, and research The impact of e cigarettes versus traditional cigarettes on long term cardiopulmonary outcomes American Journal of Physiology Heart and Circulatory Physiology American Physiological Society Congress acts to close 'loophole' that kept kid friendly e cigarette flavors on the market FDA proposes broad rules for e cigarettes Are E Cigarettes Healthy? Medical Associates of Northwest Arkansas How are Non Combusted Cigarettes, Sometimes Called Heat Not Burn Products, Different from E Cigarettes and Cigarettes? FDA