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de Graaf IM, van Bezouw SM, Jakobs ME, Leschot NJ, Zondervan HA, Bilardo CM, Hoovers JM.de Graaf IM, et al. Among authors: hoovers jm.Prenat Diagn. 1999 Feb;19(2):175-7.Prenat Diagn. 1999.PMID: 10215078