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Shaheen NJ, Silverman LM, Keku T, Lawrence LB, Rohlfs EM, Martin CF, Galanko J, Sandler RS.Shaheen NJ, et al. Among authors: lawrence lb.J Natl Cancer Inst. 2003 Jan 15;95(2):154-9. doi: 10.1093/jnci/95.2.154.J Natl Cancer Inst. 2003.PMID: 12529348