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Ellis ER, Marcus RB Jr, Cicale MJ, Springfield DS, Bova FJ, Graham-Pole J, Enneking WF, Spanier SS, Million RR.Ellis ER, et al.J Clin Oncol. 1992 Mar;10(3):459-63. doi: 10.1200/JCO.1992.10.3.459.J Clin Oncol. 1992.PMID: 1740684