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van Oost FJ, van der Hoeven JJ, Hoekstra OS, Voogd AC, Coebergh JW, van de Poll-Franse LV.van Oost FJ, et al. Among authors: hoekstra os.Eur J Cancer. 2004 Jul;40(10):1545-53. doi: 10.1016/j.ejca.2004.03.012.Eur J Cancer. 2004.PMID: 15196539