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Welch M, Dutton JM, Glansdorp FG, Thomas GL, Smith DS, Coulthurst SJ, Barnard AM, Salmond GP, Spring DR.Welch M, et al.Bioorg Med Chem Lett. 2005 Oct 1;15(19):4235-8. doi: 10.1016/j.bmcl.2005.06.066.Bioorg Med Chem Lett. 2005.PMID: 16051488