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Perceived risk of electronic cigarettes compared with combustible cigarettes: direct versus indirect questioning
Churchill, Victoria, Nyman, Amy L, Weaver, Scott R, Yang, Bo, Huang, Jidong, Popova, LucyJournal:
Tobacco Control
DOI:
10.1136/tobaccocontrol-2019-055404
Date:
June, 2020
File:
PDF, 370 KB
2020