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de Boer AG, Frings-Dresen MH.de Boer AG, et al.Occup Med (Lond). 2009 Sep;59(6):378-80. doi: 10.1093/occmed/kqp087.Occup Med (Lond). 2009.PMID: 19692523Review.
van der Beek AJ, Frings-Dresen MH, van Dijk FJ, Houtman IL.van der Beek AJ, et al.Occup Environ Med. 1997 Jul;54(7):504-10. doi: 10.1136/oem.54.7.504.Occup Environ Med. 1997.PMID: 9282128Free PMC article.
de Zwart BC, Frings-Dresen MH, van Duivenbooden JC.de Zwart BC, et al.Occup Med (Lond). 2002 Jun;52(4):177-81. doi: 10.1093/occmed/52.4.177.Occup Med (Lond). 2002.PMID: 12091582
van Saane N, Sluiter JK, Verbeek JH, Frings-Dresen MH.van Saane N, et al.Occup Med (Lond). 2003 May;53(3):191-200. doi: 10.1093/occmed/kqg038.Occup Med (Lond). 2003.PMID: 12724553Review.