Lipari, R. N; Van Horn, S. L. Trends in Smokeless Tobacco Use and Initiation: 2002 to 2014. Substance Abuse and Mental Health Services Administration. 31 May 2017. PMID 28636307. 本文含有此來源中屬於公有領域的內容。
Lipari, R. N; Van Horn, S. L. Trends in Smokeless Tobacco Use and Initiation: 2002 to 2014. Substance Abuse and Mental Health Services Administration. 31 May 2017. PMID 28636307. 本文含有此來源中屬於公有領域的內容。
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