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Langendijk JA, Slotman BJ, van der Waal I, Doornaert P, Berkof J, Leemans CR.Langendijk JA, et al.Cancer. 2005 Oct 1;104(7):1408-17. doi: 10.1002/cncr.21340.Cancer. 2005.PMID: 16130134Free article.