E-cigarette Unit Sales, by Product and Flavor Type — United States, 2014–2020
MMWR. Morbidity and mortality weekly report, 2020-09, Vol.69 (37), p.1313-1318COPYRIGHT 2020 U.S. Government Printing Office ;COPYRIGHT 2020 U.S. Government Printing Office ;ISSN: 0149-2195 ;EISSN: 1545-861X ;DOI: 10.15585/mmwr.mm6937e2 ;PMID: 32941416
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