http://pubs.jamanetwork.com/ en-us Wed, 15 May 2013 00:00:00 GMT Tue, 14 May 2013 20:46:20 GMT Silverchair editor@pubs.jamanetwork.com webmaster@pubs.jamanetwork.com http://pubs.jamanetwork.com/article.aspx?articleID=1687573 Wed, 15 May 2013 00:00:00 GMT Agaku IT, Vardavas CI, Ayo-Yusuf OA, et al. <span class="paragraphSection">To the Editor: Tobacco use remains the leading preventable cause of death and disease in the United States. Declines in smoking among youths were observed from the late 1990s, particularly after the Master Settlement Agreement in 1998. However, limited information exists on trends in smokeless tobacco use among US youths.</span> 309 19 1992 1994 10.1001/jama.2013.4412 http://pubs.jamanetwork.com/article.aspx?articleID=1687573 http://pubs.jamanetwork.com/article.aspx?articleID=1687576 Wed, 15 May 2013 00:00:00 GMT 309 19 1983 1983 10.1001/jama.2013.5120 http://pubs.jamanetwork.com/article.aspx?articleID=1687576