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Clark RM, Whelan T, Levine M, Roberts R, Willan A, McCulloch P, Lipa M, Wilkinson RH, Mahoney LJ.Clark RM, et al.J Natl Cancer Inst. 1996 Nov 20;88(22):1659-64. doi: 10.1093/jnci/88.22.1659.J Natl Cancer Inst. 1996.PMID: 8931610Clinical Trial.
Whelan TJ, Mohide EA, Willan AR, Arnold A, Tew M, Sellick S, Gafni A, Levine MN.Whelan TJ, et al.Cancer. 1997 Oct 15;80(8):1518-24. doi: 10.1002/(sici)1097-0142(19971015)80:8<1518::aid-cncr21>3.0.co;2-7.Cancer. 1997.PMID: 9338478