PT - JOURNAL ARTICLE AU - Elise Hickman AU - Ilona Jaspers TI - Evolving chemical landscape of e-cigarettes, 2021 AID - 10.1136/tobaccocontrol-2021-056808 DP - 2021 Jul 21 TA - Tobacco Control PG - tobaccocontrol-2021-056808 4099 - http://tobaccocontrol.bmj.com/content/early/2021/07/20/tobaccocontrol-2021-056808.short 4100 - http://tobaccocontrol.bmj.com/content/early/2021/07/20/tobaccocontrol-2021-056808.full