Article info
Original research
E-cigarette and cigarette purchasing among young adults before and after implementation of California’s tobacco 21 policy
- Correspondence to Dr Jessica Barrington-Trimis, Department of Preventive Medicine, University of Southern California, Los Angeles, CA 90089, USA; jtrimis{at}usc.edu
Citation
E-cigarette and cigarette purchasing among young adults before and after implementation of California’s tobacco 21 policy
Publication history
- Received September 27, 2019
- Revised January 7, 2020
- Accepted January 29, 2020
- First published February 27, 2020.
Online issue publication
February 22, 2021
Article Versions
- Previous version (27 February 2020).
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Copyright information
© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.