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2. Ethnic differences in the incidence of cleft of lip and/or cleft palate in Auckland 1960–1976;Chapman;NZ Med J,1983
3. A study of major congenital defects in Japanese infants;Neel;Am J Hum Genet,1958
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5. Etiology of cleft lip and palate;Fraser;Am J Hum Genet,1970