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Barton MB, Morley DS, Moore S, Allen JD, Kleinman KP, Emmons KM, Fletcher SW.Barton MB, et al. Among authors: morley ds.J Natl Cancer Inst. 2004 Apr 7;96(7):529-38. doi: 10.1093/jnci/djh083.J Natl Cancer Inst. 2004.PMID: 15069115Clinical Trial.