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Bonthron DT, Dunlop N, Barr DG, El Sanousi AA, Al-Gazali LI.Bonthron DT, et al. Among authors: barr dg.J Med Genet. 1998 Apr;35(4):288-92. doi: 10.1136/jmg.35.4.288.J Med Genet. 1998.PMID: 9598721Free PMC article.