Characteristics and changes over time of nicotine vaping products used by vapers in the 2016 and 2018 ITC Four Country Smoking and Vaping Surveys
Nicholas J Felicione, Brian Vincent Fix, Ann McNeill, K. Michael Cummings, Maciej Lukasz Goniewicz, David Hammond, Ron Borland, Bryan W Heckman, Maansi Bansal-Travers, Shannon Gravely, Sara C Hitchman, David T Levy, Geoffrey T Fong, Richard O'Connor
Tobacco Control Mar 2021, tobaccocontrol-2020-056239; DOI: 10.1136/tobaccocontrol-2020-056239