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Demeyer M, De Graef P, Wagemans J, Verfaillie K.Demeyer M, et al. Among authors: de graef p.J Vis. 2009 Apr 30;9(4):28.1-14. doi: 10.1167/9.4.28.J Vis. 2009.PMID: 19757937Free article.
Van Eccelpoel C, Germeys F, De Graef P, Verfaillie K.Van Eccelpoel C, et al. Among authors: de graef p.J Vis. 2008 Dec 30;8(14):29.1-16. doi: 10.1167/8.14.29.J Vis. 2008.PMID: 19146330Free article.
Demeyer M, De Graef P, Wagemans J, Verfaillie K.Demeyer M, et al. Among authors: de graef p.Vision Res. 2010 Jun 18;50(13):1225-34. doi: 10.1016/j.visres.2010.04.008. Epub 2010 Apr 9.Vision Res. 2010.PMID: 20382174Free article.
Germeys F, De Graef P, Van Eccelpoel C, Verfaillie K.Germeys F, et al. Among authors: de graef p.J Vis. 2010 Aug 1;10(10):9. doi: 10.1167/10.10.9.J Vis. 2010.PMID: 20884474Free article.