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Tournade MF, Com-Nougué C, de Kraker J, Ludwig R, Rey A, Burgers JM, Sandstedt B, Godzinski J, Carli M, Potter R, Zucker JM; International Society of Pediatric Oncology Nephroblastoma Trial and Study Committee.Tournade MF, et al. Among authors: ludwig r.J Clin Oncol. 2001 Jan 15;19(2):488-500. doi: 10.1200/JCO.2001.19.2.488.J Clin Oncol. 2001.PMID: 11208843Clinical Trial.
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Flentje M, Weirich A, Pötter R, Ludwig R.Flentje M, et al. Among authors: ludwig r.Radiother Oncol. 1994 Jun;31(3):222-8. doi: 10.1016/0167-8140(94)90427-8.Radiother Oncol. 1994.PMID: 8066205Clinical Trial.
Flentje M, Weirich A, Graf N, Pötter R, Zimmerman H, Ludwig R.Flentje M, et al. Among authors: ludwig r.Int J Radiat Oncol Biol Phys. 1998 Jan 1;40(1):163-9. doi: 10.1016/s0360-3016(97)00588-9.Int J Radiat Oncol Biol Phys. 1998.PMID: 9422573