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Dijkhuizen K, Dekkers OM, Holleboom CA, de Groot CJ, Hellebrekers BW, van Roosmalen GJ, Janssen CA, Helmerhorst FM.Dijkhuizen K, et al.Hum Reprod. 2011 Feb;26(2):323-9. doi: 10.1093/humrep/deq348. Epub 2010 Dec 15.Hum Reprod. 2011.PMID: 21159683Clinical Trial.