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Wulf M, van Nes A, Eikelenboom-Boskamp A, de Vries J, Melchers W, Klaassen C, Voss A.Wulf M, et al.Emerg Infect Dis. 2006 Dec;12(12):1939-41. doi: 10.3201/eid1212.060355.Emerg Infect Dis. 2006.PMID: 17326948Free PMC article.
de Valk HA, Meis JF, Klaassen CH.de Valk HA, et al. Among authors: klaassen ch.J Microbiol Methods. 2007 May;69(2):268-72. doi: 10.1016/j.mimet.2007.01.009. Epub 2007 Jan 31.J Microbiol Methods. 2007.PMID: 17328980
de Valk HA, Klaassen CH, Meis JF.de Valk HA, et al. Among authors: klaassen ch.Mycoses. 2008 Nov;51(6):463-76. doi: 10.1111/j.1439-0507.2008.01538.x. Epub 2008 Sep 12.Mycoses. 2008.PMID: 18793268Review.