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Gamis AS, Woods WG, Alonzo TA, Buxton A, Lange B, Barnard DR, Gold S, Smith FO; Children's Cancer Group Study 2891.Gamis AS, et al.J Clin Oncol. 2003 Sep 15;21(18):3415-22. doi: 10.1200/JCO.2003.08.060. Epub 2003 Jul 28.J Clin Oncol. 2003.PMID: 12885836Clinical Trial.