Frontiers Influence of E Liquid Humectants, Nicotine, and Flavorings on Aerosol Particle Size Distribution and Implications for Modeling Respiratory Deposition Aerosol droplet size distribution and airborne nicotine portioning in particle and gas phases emitted by electronic cigarettes Scientific Reports Tracing the composition of single e cigarette aerosol droplets in situ by laser trapping and Raman scattering Scientific Reports Read "Public Health Consequences of E Cigarettes" at NAP.edu What Causes the 'Throat Hit' in E Cigarettes, and Why It Matters Aerosol Research Group Composition of electronic cigarette aerosol Wikipedia