Study concerning analysis of genes causing oral congenital anomalies

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The incidences of congenital oral anomalies are not so high that even the incidence of cleft lip/palate that is the highest among the congenital oral anomalies is only 0.015%, let alone the incidence of a syndrome of congenital oral anomalies. Therefore, it is difficult to collect samples of a syndrome of congenital oral anomalies from one country alone and genetically analyze them. This study developed a system to collect many genes relating to congenital oral anomalies from as many countries as possible and bank them to provide researchers with those samples.The results are :The number of samples collected from foreign people : 7057(Vietnamese : 4290, Mongol : 1999, Myanmarese : 580, Mexican : 30, Laotian : 158)The number of samples collected from Japanese : 1717