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Original Article
Ying Gao, Keith Killian, Hong Zhang, Kai Yu, Qi-Zhai Li, Stephanie Weinstein, Jarmo Virtamo, Margaret Tucker, Philip Taylor, Demetrius Albanes, Paul Meltzer, Neil Caporaso 
World J Gastrointest Oncol 4(8):193-201. Published online Aug 15, 2012. doi: 10.4251/wjgo.v4.i8.193