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Perry J, Zinman L, Chambers A, Spithoff K, Lloyd N, Laperriere N; Neuro-oncology Disease Site Group; Cancer Care Ontario’s Program in Evidence-Based Care.Perry J, et al. Among authors: spithoff k.Curr Oncol. 2006 Dec;13(6):222-9. doi: 10.3747/co.v13i6.107.Curr Oncol. 2006.PMID: 22792022Free PMC article.