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本文研究和探讨了原发性智力障碍患儿的病因,为遗传谘询和产前诊断提供了一定的依据,这对于智力障碍的预防、早期诊断与治疗有参考意义
This paper studies and explores the etiology of children with primary mental retardation and provides some evidence for genetic counseling and prenatal diagnosis, which has reference value for the prevention, early diagnosis and treatment of mental retardation