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McClure JB, Shortreed SM, Bogart A, Derry H, Riggs K, St John J, Nair V, An L.McClure JB, et al.J Med Internet Res. 2013 Mar 25;15(3):e69. doi: 10.2196/jmir.2508.J Med Internet Res. 2013.PMID: 23529377Free PMC article.Clinical Trial.
McClure JB, Riggs KR, St John J, Cerutti B, Zbikowski S.McClure JB, et al. Among authors: riggs kr.Public Health Rep. 2012 Jul-Aug;127(4):401-6. doi: 10.1177/003335491212700408.Public Health Rep. 2012.PMID: 22753983Free PMC article.
McClure JB, Riggs K, St John J, Catz SL.McClure JB, et al.BMC Public Health. 2013 Apr 11;13:336. doi: 10.1186/1471-2458-13-336.BMC Public Health. 2013.PMID: 23577873Free PMC article.
Kealey KA, Ludman EJ, Mann SL, Marek PM, Phares MM, Riggs KR, Peterson AV Jr.Kealey KA, et al. Among authors: riggs kr.Nicotine Tob Res. 2007 Feb;9(2):257-70. doi: 10.1080/14622200601080315.Nicotine Tob Res. 2007.PMID: 17365757