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Roelen CA, Koopmans PC, Bültmann U, Groothoff JW, van der Klink JJ.Roelen CA, et al. Among authors: koopmans pc.Int Arch Occup Environ Health. 2009 Oct;82(9):1107-13. doi: 10.1007/s00420-009-0425-6. Epub 2009 May 27.Int Arch Occup Environ Health. 2009.PMID: 19471954Free PMC article.
Koopmans PC, Roelen CA, Groothoff JW.Koopmans PC, et al.Occup Environ Med. 2008 Jul;65(7):494-9. doi: 10.1136/oem.2007.034322. Epub 2007 Nov 21.Occup Environ Med. 2008.PMID: 18032531Free article.
Roelen CA, Koopmans PC, Hoedeman R, Bültmann U, Groothoff JW, van der Klink JJ.Roelen CA, et al. Among authors: koopmans pc.Eur J Public Health. 2009 Dec;19(6):625-30. doi: 10.1093/eurpub/ckp090. Epub 2009 Jul 6.Eur J Public Health. 2009.PMID: 19581376
Roelen CA, Koopmans PC, Groothoff JW.Roelen CA, et al. Among authors: koopmans pc.Work. 2009;34(1):13-9. doi: 10.3233/WOR-2009-0898.Work. 2009.PMID: 19923672
Roelen CA, Koopmans PC, Anema JR, van der Beek AJ.Roelen CA, et al. Among authors: koopmans pc.J Occup Rehabil. 2010 Mar;20(1):113-21. doi: 10.1007/s10926-009-9226-8.J Occup Rehabil. 2010.PMID: 20052523Free PMC article.
Roelen CA, Koopmans PC, Schellart AJ, van der Beek AJ.Roelen CA, et al. Among authors: koopmans pc.J Occup Rehabil. 2011 Sep;21(3):431-40. doi: 10.1007/s10926-010-9274-0.J Occup Rehabil. 2011.PMID: 21153688Free PMC article.