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Hartman E, Smith J, Westendorp M, Visscher C.Hartman E, et al. Among authors: westendorp m.J Intellect Disabil Res. 2015 May;59(5):439-49. doi: 10.1111/jir.12142. Epub 2014 Jun 22.J Intellect Disabil Res. 2015.PMID: 24953003
Westendorp M, Hartman E, Houwen S, Huijgen BC, Smith J, Visscher C.Westendorp M, et al.Res Dev Disabil. 2014 Feb;35(2):357-63. doi: 10.1016/j.ridd.2013.11.018. Epub 2013 Dec 11.Res Dev Disabil. 2014.PMID: 24333806
Westendorp M, Hartman E, Houwen S, Smith J, Visscher C.Westendorp M, et al.Res Dev Disabil. 2011 Nov-Dec;32(6):2773-9. doi: 10.1016/j.ridd.2011.05.032. Epub 2011 Jun 22.Res Dev Disabil. 2011.PMID: 21700421
Westendorp M, Houwen S, Hartman E, Visscher C.Westendorp M, et al.Res Dev Disabil. 2011 May-Jun;32(3):1147-53. doi: 10.1016/j.ridd.2011.01.009.Res Dev Disabil. 2011.PMID: 21310587
Ehret A, Westendorp MO, Herr I, Debatin KM, Heeney JL, Frank R, Krammer PH.Ehret A, et al. Among authors: westendorp mo.J Virol. 1996 Sep;70(9):6502-7. doi: 10.1128/JVI.70.9.6502-6507.1996.J Virol. 1996.PMID: 8709290Free PMC article.