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Drenth JP, Mariman EC, Van der Velde-Visser SD, Ropers HH, Van der Meer JW.Drenth JP, et al. Among authors: ropers hh.Hum Genet. 1994 Dec;94(6):616-20. doi: 10.1007/BF00206953.Hum Genet. 1994.PMID: 7989036