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Lim U, Gayles T, Katki HA, Stolzenberg-Solomon R, Weinstein SJ, Pietinen P, Taylor PR, Virtamo J, Albanes D.Lim U, et al.Cancer Res. 2007 Jun 1;67(11):5569-74. doi: 10.1158/0008-5472.CAN-07-0212. Epub 2007 May 23.Cancer Res. 2007.PMID: 17522388Clinical Trial.