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Farkas LG, Hajnis K, Posnick JC.Farkas LG, et al. Among authors: posnick jc.Cleft Palate Craniofac J. 1993 Jan;30(1):1-12. doi: 10.1597/1545-1569_1993_030_0001_aaafot_2.3.co_2.Cleft Palate Craniofac J. 1993.PMID: 8418865